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The attached sheet used to work and now doesn't. The regression happened somewhere between build 7803 (works) and 7822 (doesn't work). Also strange: the german error message even though the UI language was set to english.  Vektoriteration AEWP.sm (18kb) downloaded 9 time(s).![2023-02-27 15_31_23-SMath Solver - [Vektoriteration AEWP.sm].png](/forum/resource.ashx?a=46377&b=2) |
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 1 user thanked mkraska for this useful post.
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Confirmed: works fine SS 6179
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Is this the correct result? 
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Yes, it is correct. Yet I consider the need to place eval() being a workaround for a bug. A similar workaround is to introduce an intermediate variable. It seems that the error is related with broken logics of matrix operations. If I remove the factor in front of the matrix, then the function call works. Seems that at some point the evaluation logic thinks that the expression is not a matrix and complains in a not very helpful way. Actually I found the culprit, it's the Ones() function. Davide, if you could ask that function to evaluate it's argument before refusing it, that would be fine. ![2023-02-27 19_39_15-SMath Solver - [Vektoriteration AEWP.sm_].png](/forum/resource.ashx?a=46382&b=2) |
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Originally Posted by: overlord  Is this the correct result ? ... from your original document YES
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Originally Posted by: mkraska 1) Yet I consider the need to place eval() being a workaround for a bug.
2) Actually I found the culprit, it's the Ones() function. 1) I agree, putting line() or eval() sometimes is cumbersome. And unnecessary. If necessity of them would be removed in all possibilities, it would be awesome. 2) You are 100% correct. I wonder how many of these little bugs out there. This little change of code worked just fine.  Regards
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