atan

Contents: Description, Arguments, Usage, Examples, Related Functions Supported Under Version: >1.69 Current Davinci Version: 2.27 64-bit Safe: Yes Description Computes the trigonometric arc-tangent of the input value. This function also deals with data from -pi/2 to pi/2 and fails when the arc-tangent function becomes undefined. Consequently atan2 only deals with data 0 to 2pi and will not fail when the arc-tangent function becomes undefined. Arguments and Return Values Parameters: An array of any numeric data type or organization containing the tangent values of angles in radians. Return Value: An array of identical type and organization of the input containing the arctan of the input Usage Syntax: atan(object = VAL) Examples dv> a 3x3x1 array of float, bsq format [36 bytes] 0.869423 0.351752 0.330590 0.418676 0.764273 0.836920 1.07670 0.560263 0.811608 dv> c=atan(a) 3x3x1 array of float, bsq format [36 bytes] 0.715663 0.338235 0.319280 0.396502 0.652573 0.696851 0.822313 0.510688 0.681779

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