# sin, sinh

## Purpose

Sine and hyperbolic sine.

## Synopsis

    Y = sin(X)
    Y = sinh(X)

## Description

The trigonometric functions operate element-wise on matrices. Their domains and ranges include complex values. All angles are measured in radians.

`sin(X)` is the circular sine of the elements of `X`.

`sinh(X)` is the hyperbolic sine of the elements of `X`.

## Examples

`sin(pi)` is not exactly zero, but rather a value the size of the floatingpoint accuracy, `eps`, because `pi` is not exactly equal to pi .

## Algorithm

## See Also

     acos, asin, atan, cos, exp, expm, funm, tan

(c) Copyright 1994 by The MathWorks, Inc.