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Issue with finding derivative - Messages
#1 Posted: 2/22/2009 9:24:41 PM
Hi,
I was just playing with the software and it looks promising, but I cannot say that it is reliable right now. While checking out differentiation option I found an error. On the screen you can see 3 different calculations and second one gives wrong result.
I was just playing with the software and it looks promising, but I cannot say that it is reliable right now. While checking out differentiation option I found an error. On the screen you can see 3 different calculations and second one gives wrong result.

#2 Posted: 2/22/2009 11:08:01 PM
Hello. Thank you for the report.
This error in symbolic module of the SMath Studio was already found and fixed:

New version of the program will be available on the end of February.
This error in symbolic module of the SMath Studio was already found and fixed:
New version of the program will be available on the end of February.
#3 Posted: 3/10/2009 5:35:37 PM
Hello there,
You did a great piece of work here, and I think I found out a problem.
Sorry but I can't post an image of it.
I compute the following
derivative of (exp(1/x)) and derivative of (exp(x^-1)) I'm expecting the same output but I got for the first one :
-exp(x)/x^2 and for the second one -exp(1/x)/x^2.
The version I'm using is windows 0.78 b3347 and I reproduced it also on the handheld version.
Thanks in advance,
C.
You did a great piece of work here, and I think I found out a problem.
Sorry but I can't post an image of it.
I compute the following
derivative of (exp(1/x)) and derivative of (exp(x^-1)) I'm expecting the same output but I got for the first one :
-exp(x)/x^2 and for the second one -exp(1/x)/x^2.
The version I'm using is windows 0.78 b3347 and I reproduced it also on the handheld version.
Thanks in advance,
C.
#4 Posted: 3/10/2009 10:52:17 PM
Thanks for the report. I've got the similar finding from the russian user of SMath Studio this week. Error reproduced, will be fixed asap.
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