Commit 15a0b0d0 authored by Craig Scott's avatar Craig Scott
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Help: math() expressions must be representable as signed 64-bit

parent 92780281
......@@ -8,7 +8,8 @@ Evaluate a mathematical expression.
math(EXPR <variable> "<expression>" [OUTPUT_FORMAT <format>])
Evaluates a mathematical ``<expression>`` and sets ``<variable>`` to the
resulting value.
resulting value. The result of the expression must be representable as a
64-bit signed integer.
The mathematical expression must be given as a string (i.e. enclosed in
double quotation marks). An example is ``"5 * (10 + 13)"``.
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