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Partial Fraction Issue


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#1 riscy00

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Posted 17 April 2021 - 02:40 PM

I was trying to use CG500 to solve partial fraction

 

F = 24 / (s+2)(s+3)(s+4) which I was expecting F = A/(s+2)+B/(s+3)+C(s+4) 

 

Using expand(24 / (s+2)(s+3)(s+4),s) it generate 1/24 instead!

 

How to fix this?



#2 pan.gejt

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Posted 19 April 2021 - 07:31 PM

I have fx-cp400 and solution is
12/(s+4)-24/(s+3)+12/(s+2)
Be sure the variable s is cleared.
I entered
expand(24/((s+2)*(s+3)*(s+4));s)

 

Edit:

Another way is using "define" command

 

Define f(s)=24/((s+2)*(s+3)*(s+4))

Expand (f(s),s)

 

I use fraction template to input the fraction on classpad.


Edited by pan.gejt, 20 April 2021 - 10:32 AM.





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