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- math
- ----
- Mathematical expressions.
- ::
- math(EXPR <output-variable> <math-expression>)
- ``EXPR`` evaluates mathematical expression and returns result in the
- output variable. Example mathematical expression is ``5 * (10 + 13)``.
- Supported operators are ``+``, ``-``, ``*``, ``/``, ``%``, ``|``, ``&``,
- ``^``, ``~``, ``<<``, ``>>``, and ``(...)``. They have the same meaning
- as they do in C code.
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