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function:ATAN [2015/01/15 01:08] peternlewis created |
function:ATAN [2015/07/13 04:43] peternlewis |
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The ATAN function returns the arctangent of its argument. | The ATAN function returns the arctangent of its argument. | ||
- | If ATAN(x)=y, then [[TAN]](y)=x. | + | If ATAN(x)=y, then [TAN](TAN)(y)=x. |