HP Forum Archive 21

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PARTFRAC error. Message #1 Posted by Romeu Medeiros on 23 June 2013, 5:19 p.m. 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

Re: PARTFRAC error. Message #2 Posted by peacecalc on 23 June 2013, 5:56 p.m., in response to message #1 by 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

Re: PARTFRAC error. Message #3 Posted by Romeu Medeiros on 23 June 2013, 10:27 p.m., in response to message #2 by 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

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