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Unstiffened cylinders

Values for calculation

$ \{T\in\mathbb{R}\mid T\geq0\} $
This set includes all real numbers that are greater than or equal to zero. Therefore, it contains all positive numbers and zero, but no negative numbers.
$ T $ $ \mathrm{°C} $
$ \{T_{test}\in\mathbb{R}\mid T_{test}\geq0\} $
This set includes all real numbers that are greater than or equal to zero. Therefore, it contains all positive numbers and zero, but no negative numbers.
$ T_{test} $ $ \mathrm{°C} $
$ \{P\in\mathbb{R}\mid P>0\} $
This set includes all real numbers that are greater than zero. Therefore, it contains only positive numbers. Zero and negative numbers are not included in this set.
$ P $ $ \mathrm{MPa} $
$ \{P_{test}\in\mathbb{R}\mid P_{test}>0\} $
This set includes all real numbers that are greater than zero. Therefore, it contains only positive numbers. Zero and negative numbers are not included in this set.
$ P_{test} $ $ \mathrm{MPa} $
$ \{e_a\in\mathbb{R}\mid e_a>0\} $
This set includes all real numbers that are greater than zero. Therefore, it contains only positive numbers. Zero and negative numbers are not included in this set.
$ e_a $ $ \mathrm{mm} $
$ \{L\in\mathbb{R}\mid L>0\} $
This set includes all real numbers that are greater than zero. Therefore, it contains only positive numbers. Zero and negative numbers are not included in this set.
$ L $ $ \mathrm{mm} $
$ \{R\in\mathbb{R}\mid R>0\} $
This set includes all real numbers that are greater than zero. Therefore, it contains only positive numbers. Zero and negative numbers are not included in this set.
$ R $ $ \mathrm{mm} $
$ \{ν\in\mathbb{R}\mid ν>0\} $
This set includes all real numbers that are greater than zero. Therefore, it contains only positive numbers. Zero and negative numbers are not included in this set.
$ ν $
$ R_{p0.2/T} $ $ \mathrm{MPa} $
$ R_{p0.2/T_{test}} $ $ \mathrm{MPa} $
$ R_{p1.0/T} $ $ \mathrm{MPa} $
$ R_{p1.0/T_{test}} $ $ \mathrm{MPa} $
$ E_T $ $ \mathrm{MPa} $
$ E_{T_{test}} $ $ \mathrm{MPa} $

Calculation

Nominal elastic limit for shell for normal operating load cases

$\text{if }\ \text{type }$$\text{of }$$\text{material}= \text{Austenitic steels}$
$\text{if }\ \text{type }$$\text{of }$$\text{material}= \text{Austenitic steels}$
Equations in LaTeX code
\text{if }\ \text{type }$$\text{of }$$\text{material}= \text{Austenitic steels}
$$σ_e=\cfrac{R_{p0.2/T}}{1.25}$$
$σ_e=\cfrac{R_{p0.2/T}}{1.25}$
Equations in LaTeX code
σ_e=\cfrac{R_{p0.2/T}}{1.25}
$\text{else}$
$\text{else}$
Equations in LaTeX code
\text{else}
$$σ_e=R_{p0.2/T}$$
$σ_e=R_{p0.2/T}$
Equations in LaTeX code
σ_e=R_{p0.2/T}

Nominal elastic limit for shell for testing load cases

$\text{if }\ \text{type }$$\text{of }$$\text{material}= \text{Austenitic steels}$
$\text{if }\ \text{type }$$\text{of }$$\text{material}= \text{Austenitic steels}$
Equations in LaTeX code
\text{if }\ \text{type }$$\text{of }$$\text{material}= \text{Austenitic steels}
$$σ_{e_{test}}=\cfrac{R_{p0.2/T_{test}}}{1.25}$$
$σ_{e_{test}}=\cfrac{R_{p0.2/T_{test}}}{1.25}$
Equations in LaTeX code
σ_{e_{test}}=\cfrac{R_{p0.2/T_{test}}}{1.25}
$\text{else}$
$\text{else}$
Equations in LaTeX code
\text{else}
$$σ_{e_{test}}=R_{p0.2/T_{test}}$$
$σ_{e_{test}}=R_{p0.2/T_{test}}$
Equations in LaTeX code
σ_{e_{test}}=R_{p0.2/T_{test}}

Pressure at which mean circumferential stress in cylindrical or conical shell midway between stiffeners, or in a spherical shell, reaches yield point for normal operating load cases

$$P_y=\cfrac{σ_e\cdot e_a}{R}$$
$P_y=\cfrac{σ_e\cdot e_a}{R}$
Equations in LaTeX code
P_y=\cfrac{σ_e\cdot e_a}{R}

Pressure at which mean circumferential stress in cylindrical or conical shell midway between stiffeners, or in a spherical shell, reaches yield point for testing load cases

$$P_{y_{test}}=\cfrac{σ_{e_{test}}\cdot e_a}{R}$$
$P_{y_{test}}=\cfrac{σ_{e_{test}}\cdot e_a}{R}$
Equations in LaTeX code
P_{y_{test}}=\cfrac{σ_{e_{test}}\cdot e_a}{R}

Parameter $ Z $

$$Z=\cfrac{π\cdot R}{L}$$
$Z=\cfrac{π\cdot R}{L}$
Equations in LaTeX code
Z=\cfrac{π\cdot R}{L}

Number of circumferential waves for an unstiffened part of a cylinder

$$n_{cyl}=2\div 20$$
$n_{cyl}=2\div 20$
Equations in LaTeX code
n_{cyl}=2\div 20

Mean elastic circumferential strain at collapse

$$ε=\cfrac{1}{n_{cyl}^2-1+\cfrac{Z^2}{2}}\cdot\left\{\cfrac{1}{\left(\cfrac{n_{cyl}^2}{Z^2}+1\right)^2}+\cfrac{e_a^2}{12\cdot R^2\cdot\left(1-ν^2\right)}\cdot\left(n_{cyl}^2-1+Z^2\right)^2\right\}$$
$ε=\cfrac{1}{n_{cyl}^2-1+\cfrac{Z^2}{2}}\cdot\left\{\cfrac{1}{\left(\cfrac{n_{cyl}^2}{Z^2}+1\right)^2}+\cfrac{e_a^2}{12\cdot R^2\cdot\left(1-ν^2\right)}\cdot\left(n_{cyl}^2-1+Z^2\right)^2\right\}$
Equations in LaTeX code
ε=\cfrac{1}{n_{cyl}^2-1+\cfrac{Z^2}{2}}\cdot\left\{\cfrac{1}{\left(\cfrac{n_{cyl}^2}{Z^2}+1\right)^2}+\cfrac{e_a^2}{12\cdot R^2\cdot\left(1-ν^2\right)}\cdot\left(n_{cyl}^2-1+Z^2\right)^2\right\}

Theoretical elastic instability pressure for collapse of a perfect cylindrical, conical or spherical shell for normal operating load cases

$$P_m=\cfrac{E_T\cdot e_a\cdot ε}{R}$$
$P_m=\cfrac{E_T\cdot e_a\cdot ε}{R}$
Equations in LaTeX code
P_m=\cfrac{E_T\cdot e_a\cdot ε}{R}

Theoretical elastic instability pressure for collapse of a perfect cylindrical, conical or spherical shell for testing load cases

$$P_{m_{test}}=\cfrac{E_{T_{test}}\cdot e_a\cdot ε}{R}$$
$P_{m_{test}}=\cfrac{E_{T_{test}}\cdot e_a\cdot ε}{R}$
Equations in LaTeX code
P_{m_{test}}=\cfrac{E_{T_{test}}\cdot e_a\cdot ε}{R}

Radio $ P_m/P_y $

$$P_m/P_y=\cfrac{P_m}{P_y}$$
$P_m/P_y=\cfrac{P_m}{P_y}$
Equations in LaTeX code
P_m/P_y=\cfrac{P_m}{P_y}

Radio $ P_{m_{test}}/P_{y_{test}} $

$$P_{m_{test}}/P_{y_{test}}=\cfrac{P_{m_{test}}}{P_{y_{test}}}$$
$P_{m_{test}}/P_{y_{test}}=\cfrac{P_{m_{test}}}{P_{y_{test}}}$
Equations in LaTeX code
P_{m_{test}}/P_{y_{test}}=\cfrac{P_{m_{test}}}{P_{y_{test}}}

Radio $ P_r/P_y $

$\text{if }\ P_m/P_y<0.25$
$\text{if }\ P_m/P_y<0.25$
Equations in LaTeX code
\text{if }\ P_m/P_y<0.25
$$P_r/P_y=0+\cfrac{0.125-0}{0.25-0}\cdot\left(P_m/P_y-0\right)$$
$P_r/P_y=0+\cfrac{0.125-0}{0.25-0}\cdot\left(P_m/P_y-0\right)$
Equations in LaTeX code
P_r/P_y=0+\cfrac{0.125-0}{0.25-0}\cdot\left(P_m/P_y-0\right)
$\text{else if }\ P_m/P_y<0.5$
$\text{else if }\ P_m/P_y<0.5$
Equations in LaTeX code
\text{else if }\ P_m/P_y<0.5
$$P_r/P_y=0.125+\cfrac{0.251-0.125}{0.5-0.25}\cdot\left(P_m/P_y-0.25\right)$$
$P_r/P_y=0.125+\cfrac{0.251-0.125}{0.5-0.25}\cdot\left(P_m/P_y-0.25\right)$
Equations in LaTeX code
P_r/P_y=0.125+\cfrac{0.251-0.125}{0.5-0.25}\cdot\left(P_m/P_y-0.25\right)
$\text{else if }\ P_m/P_y<0.75$
$\text{else if }\ P_m/P_y<0.75$
Equations in LaTeX code
\text{else if }\ P_m/P_y<0.75
$$P_r/P_y=0.251+\cfrac{0.375-0.251}{0.75-0.5}\cdot\left(P_m/P_y-0.5\right)$$
$P_r/P_y=0.251+\cfrac{0.375-0.251}{0.75-0.5}\cdot\left(P_m/P_y-0.5\right)$
Equations in LaTeX code
P_r/P_y=0.251+\cfrac{0.375-0.251}{0.75-0.5}\cdot\left(P_m/P_y-0.5\right)
$\text{else if }\ P_m/P_y<1$
$\text{else if }\ P_m/P_y<1$
Equations in LaTeX code
\text{else if }\ P_m/P_y<1
$$P_r/P_y=0.375+\cfrac{0.5-0.375}{1-0.75}\cdot\left(P_m/P_y-0.75\right)$$
$P_r/P_y=0.375+\cfrac{0.5-0.375}{1-0.75}\cdot\left(P_m/P_y-0.75\right)$
Equations in LaTeX code
P_r/P_y=0.375+\cfrac{0.5-0.375}{1-0.75}\cdot\left(P_m/P_y-0.75\right)
$\text{else if }\ P_m/P_y<1.25$
$\text{else if }\ P_m/P_y<1.25$
Equations in LaTeX code
\text{else if }\ P_m/P_y<1.25
$$P_r/P_y=0.5+\cfrac{0.605-0.5}{1.25-1}\cdot\left(P_m/P_y-1\right)$$
$P_r/P_y=0.5+\cfrac{0.605-0.5}{1.25-1}\cdot\left(P_m/P_y-1\right)$
Equations in LaTeX code
P_r/P_y=0.5+\cfrac{0.605-0.5}{1.25-1}\cdot\left(P_m/P_y-1\right)
$\text{else if }\ P_m/P_y<1.5$
$\text{else if }\ P_m/P_y<1.5$
Equations in LaTeX code
\text{else if }\ P_m/P_y<1.5
$$P_r/P_y=0.605+\cfrac{0.68-0.605}{1.5-1.25}\cdot\left(P_m/P_y-1.25\right)$$
$P_r/P_y=0.605+\cfrac{0.68-0.605}{1.5-1.25}\cdot\left(P_m/P_y-1.25\right)$
Equations in LaTeX code
P_r/P_y=0.605+\cfrac{0.68-0.605}{1.5-1.25}\cdot\left(P_m/P_y-1.25\right)
$\text{else if }\ P_m/P_y<1.75$
$\text{else if }\ P_m/P_y<1.75$
Equations in LaTeX code
\text{else if }\ P_m/P_y<1.75
$$P_r/P_y=0.68+\cfrac{0.72-0.68}{1.75-1.5}\cdot\left(P_m/P_y-1.5\right)$$
$P_r/P_y=0.68+\cfrac{0.72-0.68}{1.75-1.5}\cdot\left(P_m/P_y-1.5\right)$
Equations in LaTeX code
P_r/P_y=0.68+\cfrac{0.72-0.68}{1.75-1.5}\cdot\left(P_m/P_y-1.5\right)
$\text{else if }\ P_m/P_y<2$
$\text{else if }\ P_m/P_y<2$
Equations in LaTeX code
\text{else if }\ P_m/P_y<2
$$P_r/P_y=0.72+\cfrac{0.755-0.72}{2-1.75}\cdot\left(P_m/P_y-1.75\right)$$
$P_r/P_y=0.72+\cfrac{0.755-0.72}{2-1.75}\cdot\left(P_m/P_y-1.75\right)$
Equations in LaTeX code
P_r/P_y=0.72+\cfrac{0.755-0.72}{2-1.75}\cdot\left(P_m/P_y-1.75\right)
$\text{else if }\ P_m/P_y<2.25$
$\text{else if }\ P_m/P_y<2.25$
Equations in LaTeX code
\text{else if }\ P_m/P_y<2.25
$$P_r/P_y=0.755+\cfrac{0.78-0.755}{2.25-2}\cdot\left(P_m/P_y-2\right)$$
$P_r/P_y=0.755+\cfrac{0.78-0.755}{2.25-2}\cdot\left(P_m/P_y-2\right)$
Equations in LaTeX code
P_r/P_y=0.755+\cfrac{0.78-0.755}{2.25-2}\cdot\left(P_m/P_y-2\right)
$\text{else if }\ P_m/P_y<2.5$
$\text{else if }\ P_m/P_y<2.5$
Equations in LaTeX code
\text{else if }\ P_m/P_y<2.5
$$P_r/P_y=0.78+\cfrac{0.803-0.78}{2.5-2.25}\cdot\left(P_m/P_y-2.25\right)$$
$P_r/P_y=0.78+\cfrac{0.803-0.78}{2.5-2.25}\cdot\left(P_m/P_y-2.25\right)$
Equations in LaTeX code
P_r/P_y=0.78+\cfrac{0.803-0.78}{2.5-2.25}\cdot\left(P_m/P_y-2.25\right)
$\text{else if }\ P_m/P_y<2.75$
$\text{else if }\ P_m/P_y<2.75$
Equations in LaTeX code
\text{else if }\ P_m/P_y<2.75
$$P_r/P_y=0.803+\cfrac{0.822-0.803}{2.75-2.5}\cdot\left(P_m/P_y-2.5\right)$$
$P_r/P_y=0.803+\cfrac{0.822-0.803}{2.75-2.5}\cdot\left(P_m/P_y-2.5\right)$
Equations in LaTeX code
P_r/P_y=0.803+\cfrac{0.822-0.803}{2.75-2.5}\cdot\left(P_m/P_y-2.5\right)
$\text{else if }\ P_m/P_y<3$
$\text{else if }\ P_m/P_y<3$
Equations in LaTeX code
\text{else if }\ P_m/P_y<3
$$P_r/P_y=0.822+\cfrac{0.836-0.822}{3-2.75}\cdot\left(P_m/P_y-2.75\right)$$
$P_r/P_y=0.822+\cfrac{0.836-0.822}{3-2.75}\cdot\left(P_m/P_y-2.75\right)$
Equations in LaTeX code
P_r/P_y=0.822+\cfrac{0.836-0.822}{3-2.75}\cdot\left(P_m/P_y-2.75\right)
$\text{else if }\ P_m/P_y<3.25$
$\text{else if }\ P_m/P_y<3.25$
Equations in LaTeX code
\text{else if }\ P_m/P_y<3.25
$$P_r/P_y=0.836+\cfrac{0.849-0.836}{3.25-3}\cdot\left(P_m/P_y-3\right)$$
$P_r/P_y=0.836+\cfrac{0.849-0.836}{3.25-3}\cdot\left(P_m/P_y-3\right)$
Equations in LaTeX code
P_r/P_y=0.836+\cfrac{0.849-0.836}{3.25-3}\cdot\left(P_m/P_y-3\right)
$\text{else if }\ P_m/P_y<3.5$
$\text{else if }\ P_m/P_y<3.5$
Equations in LaTeX code
\text{else if }\ P_m/P_y<3.5
$$P_r/P_y=0.849+\cfrac{0.861-0.849}{3.5-3.25}\cdot\left(P_m/P_y-3.25\right)$$
$P_r/P_y=0.849+\cfrac{0.861-0.849}{3.5-3.25}\cdot\left(P_m/P_y-3.25\right)$
Equations in LaTeX code
P_r/P_y=0.849+\cfrac{0.861-0.849}{3.5-3.25}\cdot\left(P_m/P_y-3.25\right)
$\text{else if }\ P_m/P_y<3.75$
$\text{else if }\ P_m/P_y<3.75$
Equations in LaTeX code
\text{else if }\ P_m/P_y<3.75
$$P_r/P_y=0.861+\cfrac{0.87-0.861}{3.75-3.5}\cdot\left(P_m/P_y-3.5\right)$$
$P_r/P_y=0.861+\cfrac{0.87-0.861}{3.75-3.5}\cdot\left(P_m/P_y-3.5\right)$
Equations in LaTeX code
P_r/P_y=0.861+\cfrac{0.87-0.861}{3.75-3.5}\cdot\left(P_m/P_y-3.5\right)
$\text{else if }\ P_m/P_y<4$
$\text{else if }\ P_m/P_y<4$
Equations in LaTeX code
\text{else if }\ P_m/P_y<4
$$P_r/P_y=0.87+\cfrac{0.879-0.87}{4-3.75}\cdot\left(P_m/P_y-3.75\right)$$
$P_r/P_y=0.87+\cfrac{0.879-0.87}{4-3.75}\cdot\left(P_m/P_y-3.75\right)$
Equations in LaTeX code
P_r/P_y=0.87+\cfrac{0.879-0.87}{4-3.75}\cdot\left(P_m/P_y-3.75\right)
$\text{else if }\ P_m/P_y<4.25$
$\text{else if }\ P_m/P_y<4.25$
Equations in LaTeX code
\text{else if }\ P_m/P_y<4.25
$$P_r/P_y=0.879+\cfrac{0.887-0.879}{4.25-4}\cdot\left(P_m/P_y-4\right)$$
$P_r/P_y=0.879+\cfrac{0.887-0.879}{4.25-4}\cdot\left(P_m/P_y-4\right)$
Equations in LaTeX code
P_r/P_y=0.879+\cfrac{0.887-0.879}{4.25-4}\cdot\left(P_m/P_y-4\right)
$\text{else if }\ P_m/P_y<4.5$
$\text{else if }\ P_m/P_y<4.5$
Equations in LaTeX code
\text{else if }\ P_m/P_y<4.5
$$P_r/P_y=0.887+\cfrac{0.896-0.887}{4.5-4.25}\cdot\left(P_m/P_y-4.25\right)$$
$P_r/P_y=0.887+\cfrac{0.896-0.887}{4.5-4.25}\cdot\left(P_m/P_y-4.25\right)$
Equations in LaTeX code
P_r/P_y=0.887+\cfrac{0.896-0.887}{4.5-4.25}\cdot\left(P_m/P_y-4.25\right)
$\text{else if }\ P_m/P_y<4.75$
$\text{else if }\ P_m/P_y<4.75$
Equations in LaTeX code
\text{else if }\ P_m/P_y<4.75
$$P_r/P_y=0.896+\cfrac{0.905-0.896}{4.75-4.5}\cdot\left(P_m/P_y-4.5\right)$$
$P_r/P_y=0.896+\cfrac{0.905-0.896}{4.75-4.5}\cdot\left(P_m/P_y-4.5\right)$
Equations in LaTeX code
P_r/P_y=0.896+\cfrac{0.905-0.896}{4.75-4.5}\cdot\left(P_m/P_y-4.5\right)
$\text{else if }\ P_m/P_y<5$
$\text{else if }\ P_m/P_y<5$
Equations in LaTeX code
\text{else if }\ P_m/P_y<5
$$P_r/P_y=0.905+\cfrac{0.914-0.905}{5-4.75}\cdot\left(P_m/P_y-4.75\right)$$
$P_r/P_y=0.905+\cfrac{0.914-0.905}{5-4.75}\cdot\left(P_m/P_y-4.75\right)$
Equations in LaTeX code
P_r/P_y=0.905+\cfrac{0.914-0.905}{5-4.75}\cdot\left(P_m/P_y-4.75\right)
$\text{else if }\ P_m/P_y<5.25$
$\text{else if }\ P_m/P_y<5.25$
Equations in LaTeX code
\text{else if }\ P_m/P_y<5.25
$$P_r/P_y=0.914+\cfrac{0.917-0.914}{5.25-5}\cdot\left(P_m/P_y-5\right)$$
$P_r/P_y=0.914+\cfrac{0.917-0.914}{5.25-5}\cdot\left(P_m/P_y-5\right)$
Equations in LaTeX code
P_r/P_y=0.914+\cfrac{0.917-0.914}{5.25-5}\cdot\left(P_m/P_y-5\right)
$\text{else if }\ P_m/P_y<5.5$
$\text{else if }\ P_m/P_y<5.5$
Equations in LaTeX code
\text{else if }\ P_m/P_y<5.5
$$P_r/P_y=0.917+\cfrac{0.923-0.917}{5.5-5.25}\cdot\left(P_m/P_y-5.25\right)$$
$P_r/P_y=0.917+\cfrac{0.923-0.917}{5.5-5.25}\cdot\left(P_m/P_y-5.25\right)$
Equations in LaTeX code
P_r/P_y=0.917+\cfrac{0.923-0.917}{5.5-5.25}\cdot\left(P_m/P_y-5.25\right)
$\text{else if }\ P_m/P_y<5.75$
$\text{else if }\ P_m/P_y<5.75$
Equations in LaTeX code
\text{else if }\ P_m/P_y<5.75
$$P_r/P_y=0.923+\cfrac{0.929-0.923}{5.75-5.5}\cdot\left(P_m/P_y-5.5\right)$$
$P_r/P_y=0.923+\cfrac{0.929-0.923}{5.75-5.5}\cdot\left(P_m/P_y-5.5\right)$
Equations in LaTeX code
P_r/P_y=0.923+\cfrac{0.929-0.923}{5.75-5.5}\cdot\left(P_m/P_y-5.5\right)
$\text{else if }\ P_m/P_y<6$
$\text{else if }\ P_m/P_y<6$
Equations in LaTeX code
\text{else if }\ P_m/P_y<6
$$P_r/P_y=0.929+\cfrac{0.935-0.929}{6-5.75}\cdot\left(P_m/P_y-5.75\right)$$
$P_r/P_y=0.929+\cfrac{0.935-0.929}{6-5.75}\cdot\left(P_m/P_y-5.75\right)$
Equations in LaTeX code
P_r/P_y=0.929+\cfrac{0.935-0.929}{6-5.75}\cdot\left(P_m/P_y-5.75\right)
$\text{else if }\ P_m/P_y<6.25$
$\text{else if }\ P_m/P_y<6.25$
Equations in LaTeX code
\text{else if }\ P_m/P_y<6.25
$$P_r/P_y=0.935+\cfrac{0.941-0.935}{6.25-6}\cdot\left(P_m/P_y-6\right)$$
$P_r/P_y=0.935+\cfrac{0.941-0.935}{6.25-6}\cdot\left(P_m/P_y-6\right)$
Equations in LaTeX code
P_r/P_y=0.935+\cfrac{0.941-0.935}{6.25-6}\cdot\left(P_m/P_y-6\right)
$\text{else if }\ P_m/P_y<6.5$
$\text{else if }\ P_m/P_y<6.5$
Equations in LaTeX code
\text{else if }\ P_m/P_y<6.5
$$P_r/P_y=0.941+\cfrac{0.947-0.941}{6.5-6.25}\cdot\left(P_m/P_y-6.25\right)$$
$P_r/P_y=0.941+\cfrac{0.947-0.941}{6.5-6.25}\cdot\left(P_m/P_y-6.25\right)$
Equations in LaTeX code
P_r/P_y=0.941+\cfrac{0.947-0.941}{6.5-6.25}\cdot\left(P_m/P_y-6.25\right)
$\text{else if }\ P_m/P_y<6.75$
$\text{else if }\ P_m/P_y<6.75$
Equations in LaTeX code
\text{else if }\ P_m/P_y<6.75
$$P_r/P_y=0.947+\cfrac{0.953-0.947}{6.75-6.5}\cdot\left(P_m/P_y-6.5\right)$$
$P_r/P_y=0.947+\cfrac{0.953-0.947}{6.75-6.5}\cdot\left(P_m/P_y-6.5\right)$
Equations in LaTeX code
P_r/P_y=0.947+\cfrac{0.953-0.947}{6.75-6.5}\cdot\left(P_m/P_y-6.5\right)
$\text{else if }\ P_m/P_y<7$
$\text{else if }\ P_m/P_y<7$
Equations in LaTeX code
\text{else if }\ P_m/P_y<7
$$P_r/P_y=0.953+\cfrac{0.959-0.953}{7-6.75}\cdot\left(P_m/P_y-6.75\right)$$
$P_r/P_y=0.953+\cfrac{0.959-0.953}{7-6.75}\cdot\left(P_m/P_y-6.75\right)$
Equations in LaTeX code
P_r/P_y=0.953+\cfrac{0.959-0.953}{7-6.75}\cdot\left(P_m/P_y-6.75\right)
$\text{else}$
$\text{else}$
Equations in LaTeX code
\text{else}
$$P_r/P_y=0.959$$
$P_r/P_y=0.959$
Equations in LaTeX code
P_r/P_y=0.959
$$P< \cfrac{P_r/P_y\cdot P_y}{1.5}$$
$P< \cfrac{P_r/P_y\cdot P_y}{1.5}$
Equations in LaTeX code
P< \cfrac{P_r/P_y\cdot P_y}{1.5}

Radio $ P_{r_{test}}/P_{y_{test}} $

$\text{if }\ P_{m_{test}}/P_{y_{test}}<0.25$
$\text{if }\ P_{m_{test}}/P_{y_{test}}<0.25$
Equations in LaTeX code
\text{if }\ P_{m_{test}}/P_{y_{test}}<0.25
$$P_{r_{test}}/P_{y_{test}}=0+\cfrac{0.125-0}{0.25-0}\cdot\left(P_{m_{test}}/P_{y_{test}}-0\right)$$
$P_{r_{test}}/P_{y_{test}}=0+\cfrac{0.125-0}{0.25-0}\cdot\left(P_{m_{test}}/P_{y_{test}}-0\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0+\cfrac{0.125-0}{0.25-0}\cdot\left(P_{m_{test}}/P_{y_{test}}-0\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<0.5$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<0.5$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<0.5
$$P_{r_{test}}/P_{y_{test}}=0.125+\cfrac{0.251-0.125}{0.5-0.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-0.25\right)$$
$P_{r_{test}}/P_{y_{test}}=0.125+\cfrac{0.251-0.125}{0.5-0.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-0.25\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.125+\cfrac{0.251-0.125}{0.5-0.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-0.25\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<0.75$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<0.75$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<0.75
$$P_{r_{test}}/P_{y_{test}}=0.251+\cfrac{0.375-0.251}{0.75-0.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-0.5\right)$$
$P_{r_{test}}/P_{y_{test}}=0.251+\cfrac{0.375-0.251}{0.75-0.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-0.5\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.251+\cfrac{0.375-0.251}{0.75-0.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-0.5\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<1$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<1$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<1
$$P_{r_{test}}/P_{y_{test}}=0.375+\cfrac{0.5-0.375}{1-0.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-0.75\right)$$
$P_{r_{test}}/P_{y_{test}}=0.375+\cfrac{0.5-0.375}{1-0.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-0.75\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.375+\cfrac{0.5-0.375}{1-0.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-0.75\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<1.25$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<1.25$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<1.25
$$P_{r_{test}}/P_{y_{test}}=0.5+\cfrac{0.605-0.5}{1.25-1}\cdot\left(P_{m_{test}}/P_{y_{test}}-1\right)$$
$P_{r_{test}}/P_{y_{test}}=0.5+\cfrac{0.605-0.5}{1.25-1}\cdot\left(P_{m_{test}}/P_{y_{test}}-1\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.5+\cfrac{0.605-0.5}{1.25-1}\cdot\left(P_{m_{test}}/P_{y_{test}}-1\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<1.5$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<1.5$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<1.5
$$P_{r_{test}}/P_{y_{test}}=0.605+\cfrac{0.68-0.605}{1.5-1.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-1.25\right)$$
$P_{r_{test}}/P_{y_{test}}=0.605+\cfrac{0.68-0.605}{1.5-1.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-1.25\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.605+\cfrac{0.68-0.605}{1.5-1.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-1.25\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<1.75$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<1.75$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<1.75
$$P_{r_{test}}/P_{y_{test}}=0.68+\cfrac{0.72-0.68}{1.75-1.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-1.5\right)$$
$P_{r_{test}}/P_{y_{test}}=0.68+\cfrac{0.72-0.68}{1.75-1.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-1.5\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.68+\cfrac{0.72-0.68}{1.75-1.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-1.5\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<2$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<2$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<2
$$P_{r_{test}}/P_{y_{test}}=0.72+\cfrac{0.755-0.72}{2-1.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-1.75\right)$$
$P_{r_{test}}/P_{y_{test}}=0.72+\cfrac{0.755-0.72}{2-1.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-1.75\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.72+\cfrac{0.755-0.72}{2-1.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-1.75\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<2.25$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<2.25$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<2.25
$$P_{r_{test}}/P_{y_{test}}=0.755+\cfrac{0.78-0.755}{2.25-2}\cdot\left(P_{m_{test}}/P_{y_{test}}-2\right)$$
$P_{r_{test}}/P_{y_{test}}=0.755+\cfrac{0.78-0.755}{2.25-2}\cdot\left(P_{m_{test}}/P_{y_{test}}-2\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.755+\cfrac{0.78-0.755}{2.25-2}\cdot\left(P_{m_{test}}/P_{y_{test}}-2\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<2.5$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<2.5$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<2.5
$$P_{r_{test}}/P_{y_{test}}=0.78+\cfrac{0.803-0.78}{2.5-2.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-2.25\right)$$
$P_{r_{test}}/P_{y_{test}}=0.78+\cfrac{0.803-0.78}{2.5-2.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-2.25\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.78+\cfrac{0.803-0.78}{2.5-2.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-2.25\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<2.75$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<2.75$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<2.75
$$P_{r_{test}}/P_{y_{test}}=0.803+\cfrac{0.822-0.803}{2.75-2.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-2.5\right)$$
$P_{r_{test}}/P_{y_{test}}=0.803+\cfrac{0.822-0.803}{2.75-2.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-2.5\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.803+\cfrac{0.822-0.803}{2.75-2.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-2.5\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<3$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<3$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<3
$$P_{r_{test}}/P_{y_{test}}=0.822+\cfrac{0.836-0.822}{3-2.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-2.75\right)$$
$P_{r_{test}}/P_{y_{test}}=0.822+\cfrac{0.836-0.822}{3-2.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-2.75\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.822+\cfrac{0.836-0.822}{3-2.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-2.75\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<3.25$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<3.25$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<3.25
$$P_{r_{test}}/P_{y_{test}}=0.836+\cfrac{0.849-0.836}{3.25-3}\cdot\left(P_{m_{test}}/P_{y_{test}}-3\right)$$
$P_{r_{test}}/P_{y_{test}}=0.836+\cfrac{0.849-0.836}{3.25-3}\cdot\left(P_{m_{test}}/P_{y_{test}}-3\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.836+\cfrac{0.849-0.836}{3.25-3}\cdot\left(P_{m_{test}}/P_{y_{test}}-3\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<3.5$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<3.5$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<3.5
$$P_{r_{test}}/P_{y_{test}}=0.849+\cfrac{0.861-0.849}{3.5-3.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-3.25\right)$$
$P_{r_{test}}/P_{y_{test}}=0.849+\cfrac{0.861-0.849}{3.5-3.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-3.25\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.849+\cfrac{0.861-0.849}{3.5-3.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-3.25\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<3.75$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<3.75$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<3.75
$$P_{r_{test}}/P_{y_{test}}=0.861+\cfrac{0.87-0.861}{3.75-3.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-3.5\right)$$
$P_{r_{test}}/P_{y_{test}}=0.861+\cfrac{0.87-0.861}{3.75-3.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-3.5\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.861+\cfrac{0.87-0.861}{3.75-3.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-3.5\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<4$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<4$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<4
$$P_{r_{test}}/P_{y_{test}}=0.87+\cfrac{0.879-0.87}{4-3.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-3.75\right)$$
$P_{r_{test}}/P_{y_{test}}=0.87+\cfrac{0.879-0.87}{4-3.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-3.75\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.87+\cfrac{0.879-0.87}{4-3.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-3.75\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<4.25$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<4.25$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<4.25
$$P_{r_{test}}/P_{y_{test}}=0.879+\cfrac{0.887-0.879}{4.25-4}\cdot\left(P_{m_{test}}/P_{y_{test}}-4\right)$$
$P_{r_{test}}/P_{y_{test}}=0.879+\cfrac{0.887-0.879}{4.25-4}\cdot\left(P_{m_{test}}/P_{y_{test}}-4\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.879+\cfrac{0.887-0.879}{4.25-4}\cdot\left(P_{m_{test}}/P_{y_{test}}-4\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<4.5$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<4.5$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<4.5
$$P_{r_{test}}/P_{y_{test}}=0.887+\cfrac{0.896-0.887}{4.5-4.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-4.25\right)$$
$P_{r_{test}}/P_{y_{test}}=0.887+\cfrac{0.896-0.887}{4.5-4.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-4.25\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.887+\cfrac{0.896-0.887}{4.5-4.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-4.25\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<4.75$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<4.75$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<4.75
$$P_{r_{test}}/P_{y_{test}}=0.896+\cfrac{0.905-0.896}{4.75-4.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-4.5\right)$$
$P_{r_{test}}/P_{y_{test}}=0.896+\cfrac{0.905-0.896}{4.75-4.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-4.5\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.896+\cfrac{0.905-0.896}{4.75-4.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-4.5\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<5$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<5$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<5
$$P_{r_{test}}/P_{y_{test}}=0.905+\cfrac{0.914-0.905}{5-4.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-4.75\right)$$
$P_{r_{test}}/P_{y_{test}}=0.905+\cfrac{0.914-0.905}{5-4.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-4.75\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.905+\cfrac{0.914-0.905}{5-4.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-4.75\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<5.25$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<5.25$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<5.25
$$P_{r_{test}}/P_{y_{test}}=0.914+\cfrac{0.917-0.914}{5.25-5}\cdot\left(P_{m_{test}}/P_{y_{test}}-5\right)$$
$P_{r_{test}}/P_{y_{test}}=0.914+\cfrac{0.917-0.914}{5.25-5}\cdot\left(P_{m_{test}}/P_{y_{test}}-5\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.914+\cfrac{0.917-0.914}{5.25-5}\cdot\left(P_{m_{test}}/P_{y_{test}}-5\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<5.5$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<5.5$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<5.5
$$P_{r_{test}}/P_{y_{test}}=0.917+\cfrac{0.923-0.917}{5.5-5.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-5.25\right)$$
$P_{r_{test}}/P_{y_{test}}=0.917+\cfrac{0.923-0.917}{5.5-5.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-5.25\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.917+\cfrac{0.923-0.917}{5.5-5.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-5.25\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<5.75$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<5.75$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<5.75
$$P_{r_{test}}/P_{y_{test}}=0.923+\cfrac{0.929-0.923}{5.75-5.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-5.5\right)$$
$P_{r_{test}}/P_{y_{test}}=0.923+\cfrac{0.929-0.923}{5.75-5.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-5.5\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.923+\cfrac{0.929-0.923}{5.75-5.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-5.5\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<6$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<6$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<6
$$P_{r_{test}}/P_{y_{test}}=0.929+\cfrac{0.935-0.929}{6-5.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-5.75\right)$$
$P_{r_{test}}/P_{y_{test}}=0.929+\cfrac{0.935-0.929}{6-5.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-5.75\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.929+\cfrac{0.935-0.929}{6-5.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-5.75\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<6.25$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<6.25$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<6.25
$$P_{r_{test}}/P_{y_{test}}=0.935+\cfrac{0.941-0.935}{6.25-6}\cdot\left(P_{m_{test}}/P_{y_{test}}-6\right)$$
$P_{r_{test}}/P_{y_{test}}=0.935+\cfrac{0.941-0.935}{6.25-6}\cdot\left(P_{m_{test}}/P_{y_{test}}-6\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.935+\cfrac{0.941-0.935}{6.25-6}\cdot\left(P_{m_{test}}/P_{y_{test}}-6\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<6.5$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<6.5$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<6.5
$$P_{r_{test}}/P_{y_{test}}=0.941+\cfrac{0.947-0.941}{6.5-6.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-6.25\right)$$
$P_{r_{test}}/P_{y_{test}}=0.941+\cfrac{0.947-0.941}{6.5-6.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-6.25\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.941+\cfrac{0.947-0.941}{6.5-6.25}\cdot\left(P_{m_{test}}/P_{y_{test}}-6.25\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<6.75$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<6.75$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<6.75
$$P_{r_{test}}/P_{y_{test}}=0.947+\cfrac{0.953-0.947}{6.75-6.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-6.5\right)$$
$P_{r_{test}}/P_{y_{test}}=0.947+\cfrac{0.953-0.947}{6.75-6.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-6.5\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.947+\cfrac{0.953-0.947}{6.75-6.5}\cdot\left(P_{m_{test}}/P_{y_{test}}-6.5\right)
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<7$
$\text{else if }\ P_{m_{test}}/P_{y_{test}}<7$
Equations in LaTeX code
\text{else if }\ P_{m_{test}}/P_{y_{test}}<7
$$P_{r_{test}}/P_{y_{test}}=0.953+\cfrac{0.959-0.953}{7-6.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-6.75\right)$$
$P_{r_{test}}/P_{y_{test}}=0.953+\cfrac{0.959-0.953}{7-6.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-6.75\right)$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.953+\cfrac{0.959-0.953}{7-6.75}\cdot\left(P_{m_{test}}/P_{y_{test}}-6.75\right)
$\text{else}$
$\text{else}$
Equations in LaTeX code
\text{else}
$$P_{r_{test}}/P_{y_{test}}=0.959$$
$P_{r_{test}}/P_{y_{test}}=0.959$
Equations in LaTeX code
P_{r_{test}}/P_{y_{test}}=0.959
$$P_{test}< \cfrac{P_{r_{test}}/P_{y_{test}}\cdot P_{y_{test}}}{1.1}$$
$P_{test}< \cfrac{P_{r_{test}}/P_{y_{test}}\cdot P_{y_{test}}}{1.1}$
Equations in LaTeX code
P_{test}< \cfrac{P_{r_{test}}/P_{y_{test}}\cdot P_{y_{test}}}{1.1}
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