ZX BASIC:ATN
From BorielWiki
[edit] ATN
Returns the arc tangent value of the given argument. Argument must be a numeric expression. Returned value type is float.
Example:
REM Arc tangent value PRINT "Arc Tangent value of a is "; ATN(a)
[edit] Remarks
- This function is 100% Sinclair BASIC Compatible
- If the given argument type is not float, it will be converted to float before operating with it.

