Wrote

"The variables should be assigned to their desired values only after the function is defined." sic!

That's true only if you don't use line() to define your function; in this case to avoid the behavior you must set the optimization of the function definition to "numeric".

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All in all, SMath functions are called ALWAYS using call by reference also known as pass by reference.
That is, the function can modify the variable used as argument.
Look this post about global and local variables / scope of variables

This is a bit away from the original subject reporting a units bug.

You might vote for the bug report http://smath.info/bts/Issues/IssueDetail.aspx?id=26 as the unit simplification issue is really nasty.

Wrote

You might vote for the bug report http://smath.info/bts/Issues/IssueDetail.aspx?id=26, as the unit simplification issue is really nasty.

the link does not work because of the trailing comma, anyway this can viewed as vote buying, paypal me hard and I'll vote your bugs :d

Wrote

Wrote

You might vote for the bug report http://smath.info/bts/Issues/IssueDetail.aspx?id=26, as the unit simplification issue is really nasty.

the link does not work because of the trailing comma, anyway this can viewed as vote buying, paypal me hard and I'll vote your bugs :d

So what? Keep in mind that this was a hint on that the topic has been shifted to the bug tracking system. Thanks for the hint with the comma.

Thank you! This issue is pretty critical. Will handle it asap.
All bugs I will manage using http://smath.info/bts/, so Features/Bugs subforums is redundant now.