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I called these ranges strict because limit the given numbers. If x is greater or less than the limit, the function will return the limit.

I created these mathematical functions because I think that math is faster that lines of code.

 

Strict range (Less).

x cannot be less than s

\(l\left(s,x\right)=\min\left(s,x\right)+\left|s-x\right|\)

if x is less than s will be returned s

 

Strict range (Greater).

x cannot be greater than s

\(g\left(s,x\right)=\max\left(s,x\right)-\left|s-x\right|\)

if x is greater than s will be returned s

 

Strict range (Greater and less).

x cannot be greater than m

x cannot be less than i

\(lg(m,x, i) = g(m, l(i, x))\)

All in a heap:

\(lg\left(m,x,i\right)=\max\left(m,\min\left(i,x\right)+\left|i-x\right|\right)-\left|m-\min\left(i,x\right)-\left|i-x\right|\right|\)

 

lg function can be less. Thanks to @heureka (see comments below).

\(lg\left(m,x,i\right)=\min\left(m,\max\left(i,x\right)\right)\)

 

Look at this in Desmos: https://www.desmos.com/calculator/shusnvnxzo

 Sep 22, 2019
edited by JoshuaGreen  Sep 24, 2019
edited by JoshuaGreen  Oct 22, 2019
 #1
avatar+23324 
+3

Strict ranges (number can't be more/less than...)

 

I assume:

 

\(\begin{array}{|rcll|} \hline l(s,x) &=& \max(s,x) \\ g(s,x) &=& \min(s,x) \\ \hline lg(m,x,i) &=& g(m, l(i, x)) \\ \mathbf{lg(m,x,i)}&=& \mathbf{ \min(m,\max(i,x)) } \\ \hline \end{array}\)

 

hint: \(\boxed{\max(s,x) - \min(s,x) = |s-x|}\)

 

laugh

 Sep 23, 2019
edited by heureka  Sep 23, 2019
edited by heureka  Sep 23, 2019
 #2
avatar+20 
+2

You're right. I did not know that the lg (all in one heap) function could be so small. I didn't know that \(\max\left(a,b\right)-\min\left(a,b\right)=\left|a-b\right|\). Thank you.

JoshuaGreen  Sep 23, 2019

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