FreeMat

- Main Page
- Related Pages

SIN Trigonometric Sine Function

Section: Mathematical Functions

# Usage

Computes the `sin` function for its argument. The general syntax for its use is

      y = sin(x)

where `x` is an `n`-dimensional array of numerical type. Integer types are promoted to the `double` type prior to calculation of the `sin` function. Output `y` is of the same size and type as the input `x`, (unless `x` is an integer, in which case `y` is a `double` type).

# Internals

Mathematically, the `sin` function is defined for all real valued arguments `x` by the infinite summation

For complex valued arguments `z`, the sine is computed via

# Example

The following piece of code plots the real-valued `sin(2 pi x)` function over one period of `[0,1]`:

    --> x = linspace(0,1);
    --> plot(x,sin(2*pi*x))