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atan

Inverse tangent in radians

Syntax

Y = atan(X)

Description

Y = atan(X) returns the inverse tangent (arctangent) for each element of X. For real elements of X, atan(X) is in the range [–π/2, π/2].

The atan function operates element-wise on arrays. The function's domains and ranges include complex values. All angles are in radians.

Examples

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Graph of Inverse Tangent Function

Graph the inverse tangent over the domain $-20 \le x \le 20$ .

x = -20:0.01:20;
plot(x,atan(x)), grid on

More About

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Inverse Tangent

The inverse tangent can be defined as

See Also

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