Error integrating with interim result

Error integrating with interim result - Integral gives different result if a variable is calcukated (and not defined) - Сообщения

#1 Опубликовано: 23.07.2019 09:59:53

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I have a simple integral calculation which contains a varable "n". If this variable is calculated in an earlier step, a wrong result is returned; the same calculation with a defined value for the variable (called "n2" in the example), the correct result appears. SMath Studio version 0.99, build 7030.

Is there a possibility to upload my sample file?

#2 Опубликовано: 23.07.2019 10:04:05

Arie

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What version are you running?

I'm not seeing this issue on 7109.

Might help if you also posted the .sm file in question.

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#3 Опубликовано: 23.07.2019 10:07:13

Stefan Weisskircher

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Hello alyles,
thanks for your answer! I have already edited my original post to add the version info.

i cannot find a button to upload my sample file...

(still searching)

#4 Опубликовано: 23.07.2019 10:07:18

Arie

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Wrote

Is there a possibility to upload my sample file?

Sorry I missed this. To upload start writing a comment, click the following button....

then click add file first. Navigate to file and select. Then you must click start upload to upload it.

Feel free to join the SMath Studio Users Discord Channel: https://discord.gg/PayZpJW

#5 Опубликовано: 23.07.2019 10:11:11

Stefan Weisskircher

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Thanks again, here we go:

Bug_Integral.sm (4 КиБ) скачан 156 раз(а).

#6 Опубликовано: 23.07.2019 10:12:41

Arie

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Are you concerned with the fractional result on the red?

If so right click on that section and change optimization to numeric. You'll get a numeric result.

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#7 Опубликовано: 23.07.2019 10:16:05

Stefan Weisskircher

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Doesn't help, I still get "-18" in the left section (which isn't correct IMHO and still deiffers from the result on the right side (green))

#8 Опубликовано: 23.07.2019 10:20:00

Arie

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Ok I just tried this in 7030 (latest stable) and can confirm I get the same results as you. This looks like a bug.

when I performed the same calculation in the newest beta version, the results seem correct.