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# cosd

Cosine of argument in degrees

## Description

example

Y = cosd(X) returns the cosine of the elements of X, which are expressed in degrees.

## Examples

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cosd(90)
ans =

0
cos(pi/2)
ans =

6.1232e-17

### Cosine of complex angles specified in degrees

Create an array of three complex angles and compute the cosine.

z = [180+i 45+2i 10+3i];
y = cosd(z)
y =

-1.0002        0.7075 - 0.0247i   0.9862 - 0.0091i

## Input Arguments

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### X — Angle in degreesscalar value | vector | matrix | N-D array

Angle in degrees, specified as a real-valued or complex-valued scalar, vector, matrix, or N-D array. The cosd operation is element-wise when X is nonscalar.

Data Types: single | double
Complex Number Support: Yes

## Output Arguments

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### Y — Cosine of anglescalar value | vector | matrix | N-D array

Cosine of angle, returned as a real-valued or complex-valued scalar, vector, matrix, or N-D array of the same size as X.