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I'm a long time Mathcad user (back to the DOS version) and I think SMath is great, better than what Mathcad has become. So I'm surprised to be so stumped by something so simple. How do I get the magnitude of a vector? In Mathcad I'd use the "|" keyboard shortcut, but in SMath that's a Boolean OR. In the tool palettes I see two operators that look like what I want: absolute value (works only on scalars) and determinant (works only on square matrices). I know this probably seems like a dumb question but I can't find reference to it anywhere. Edited by user 27 September 2020 18:41:05(UTC)
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Just discovered the answer apparently is the "norme" function, kind of like in MATLAB. Mathcad has it too, but for square matrices only. I guess I was thinking more like an engineer than a mathematician. Would still be interested to know whether there's a way I'm missing that makes the vector magnitude look like |x| which is the usage I'm used to.
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For only numerical procedures it seems that you can redefine abs(x) in this way:  Notice that this don't works for derivatives. It could be a good idea typesetting norme(x) as ||x|| (double bar). Best regards. Alvaro.
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 1 user thanked Razonar for this useful post.
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Originally Posted by: ggmaynard  How do I get the magnitude of a vector? More generally, the length of a vector is its arc length. Then from simple Wikipedia style or mathematically computable.. Always possible from discrete data + finite differences.
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Originally Posted by: ggmaynard makes the vector magnitude look like |x|  ArcLength.sm (50kb) downloaded 79 time(s).
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