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Hi, I am trying to convert a Mathcad 15 sheet, and have a problem with the below equation:  Is there a summation within Smath that will do the second summation? From the Mathcad help:  Thanks in advance Ian
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Hi. There are not equivalent, but this is how to convert it into usual summation operator.  Best regards. Alvaro.
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Hi,
Still cant get it to work, I will strip out the identifying material and post the worksheet.
Thanks
Ian
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Originally Posted by: ianlh  Attached is sheet, this is a MRM for beam frequency analysis Sum over 'n' ... NOT over 'k' Model summation attached.  Function Running Summation.sm (33kb) downloaded 10 time(s).
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 Rank: Advanced Member Groups: Registered, Advanced Member Joined: 10/11/2010(UTC) Posts: 1,494   Was thanked: 1274 time(s) in 745 post(s)
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Originally Posted by: ianlh Attached is sheet, this is a MRM for beam frequency analysis Better to attach the original Mathcad document. |
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Viacheslav N. Mezentsev |
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Mathcad sheet attached, striped version beam frequency test 2.xmcd (172kb) downloaded 10 time(s).Jean, I am at a loss as to which part of your file I should be looking at. Ian
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Hi. As Viacheslav says, it's better in this case the mathcad file. Just a couple of notes. You use a for loop with i as counter. Thus, at the exit, i equals the last count value, not the entire range. So, or you redefine i as range, or use this way for not changing i value  Actually, SMath doesn't have "range" variables, it only have scalars and matrices. But mathcad have "true" range variables, which it's more a complication than an adventage. BTW in SMath you can't use a range variable in the same way, and sometimes needs some dummy variable for detect them  Finally, remember that in mathcad sqrt(-1) is 1i, but in SMath it is just i, so using is as counter you loose all the complex algebra. Bests regards. Alvaro.
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Originally Posted by: ianlh Jean, I am at a loss as to which part of your file I should be looking at. It just shows how to run summation wrt several dependent functions.
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Hi Alvaro,
Some interesting hints there. I imagine its also the same going the other way.
Hi Jean,
OK, now I understand, just some pointers for me
Thanks
Ian
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Originally Posted by: ianlh Hi Jean,
OK, now I understand, just some pointers for me
Thanks
Ian The A,B are numerical two vectors of coefficients. Then introduced in the scalar function wrt sin/cos.
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Rank: Advanced Member Groups: Registered, Advanced Member Joined: 10/11/2010(UTC) Posts: 1,494 Was thanked: 1274 time(s) in 745 post(s)
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Originally Posted by: ianlh I am trying to convert a Mathcad 15 sheet, and have a problem with the below equation: I think that there should be such a replacement.   |
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Viacheslav N. Mezentsev |
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Rank: Advanced Member Groups: Registered, Advanced Member Joined: 10/11/2010(UTC) Posts: 1,494 Was thanked: 1274 time(s) in 745 post(s)
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You can use debugging in both programs to check that the functions are working correctly.  |
Russia ☭ forever
Viacheslav N. Mezentsev |
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Hi,
Thanks for the pointers, will revisit tomorrow
Ian
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