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Hi, As I'm learning into SMath (and greatly enjoying this) I've struck a wee problem and I can't seem to find in the tool pallets or the interactive book/help videos. It is the Vertical Bar operator (constraint? inputs?) and how do I enter it? Thank you in advance. 
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Originally Posted by: marks2c  It is the Vertical Bar operator (constraint? inputs?) and how do I enter it? It is line() function.
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Originally Posted by: overlord It is line() function. Excellent, thank you. On to it.
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Originally Posted by: marks2c It is the Vertical Bar operator (constraint? inputs?) and how do I enter it? Type ] to elongate: click any place holder, type ,,,,,, coma Try it, does it work ? Much simpler than from f(x) menu.
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No function line()   Primer.sm (7kb) downloaded 5 time(s).
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Originally Posted by: marks2c Excellent, thank you. On to it. Line() is used mainly for programming. One benefit of using is using in user functions. You can find more information about other things on Reference book. Regards 
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In Appendix B of the SMath Handbuch you find a list of operators and how to input them. There is also a snippet "Help" in the online gallery but some entries there are not correctly formatted (problem with Table region). In the interactive handbook you find these tables under >SMath Studio Documents >Operators and their keyboard input. The tables there seem to be ok. There seem to be differences between the rendering engine in the reference material window and in the main window of SMath Studio. ![2022-04-11 11_53_08-SMath Solver - [mathblock_Solve.sm_].png](/forum/resource.ashx?a=43415&b=2) Edited by user 11 April 2022 12:59:13(UTC)
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Your very first project may produce an arc region as exemplified/demo in the attached ... NFG for suite. As offered, no flaw ... However, new command line dictates the suite be adapted. Smath so gorgeous in there ! Cheers ... Jean. Maths algo style.sm (44kb) downloaded 5 time(s).
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Originally Posted by: marks2c As I'm learning into SMath (and greatly enjoying this) I've struck a wee problem and I can't seem to find in the tool pallets or the interactive book/help videos. Here, there is no tool palette. Immensely productive. 
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There are some other tricks to remember as well. Here is list of would be considered useful; - symbolic/numeric optimization
most errors can be parsed with selecting the right one
- Δ temperatures (Δ°C, Δ°F, Δ°Re)
- using units for engineering calculations
- not using units for plots and some solvers {solve(), roots()}
or using multiplications at right place to trick as value is unitless
- using maple() or maxima() for most symbolic results (better support)
- smath vectors/matrices starts with 1, mathcad starts with 0
some new users troubles with converting mathcad functions to smath
- recursive functions shall give an error after 50 steps
better not to use it, try to write algorithms conventional way
- eval() for faster calculations (sometimes)
- line() for verbatim functions (not needed always)
- to be careful for variable names
- choosing right plot for the right job
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Originally Posted by: Jean Giraud As offered, no flaw ... ... slightly refreshed. Maths algo style.sm (47kb) downloaded 6 time(s).
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Sometimes eval() and line() can correct the solutions too.
SMath may have difficulties and those two may help.
Regards
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