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Hello Friends,

I have a HP50g with software #2.15, we are trying solve a partfrac:

(-0.01(x+7500))/((x+5000)ˆ2), the HP show me the result is: -25/(X+5000)/(X+5000).

But the correct result is: -25./(5000.+x)^2-0.01/(5000.+x)

Someone have this problem before?


Thanks


Romeu Medeiros

Hello Romeu,

if you change -0.01 in -1/100 you get what you want.

The CAS tends to show unpredictable results if you input expressions with floating point values. You should work with exact values.

Greetings
peacecalc

Hello PeaceCalc,

I dont knew about this issue with the cas.

Now I try like you said, and works correctly. :-)

Thanks a lot


Romeu Medeiros