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(→math: +segment "Trigonometric_functions", hint to radian-values) |
(→num(str): Nil cases) |
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Line 22: | Line 22: | ||
== num(str) == | == num(str) == | ||
Convert string to number. | Convert string to number. | ||
Returns nil if str is nil, empty string, string with no number. | |||
== streq() == | == streq() == |
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