# tic, toc

## Purpose

Stopwatch timer.

## Synopsis

    tic
    any statements
    toc
    t = toc

## Description

`tic` starts a stopwatch timer.

`toc`, by itself, prints the elapsed time since `tic` was used.

`t = toc` returns the elapsed time in `t`.

## Examples

This example measures how the time required to solve a linear system varies with the order of a matrix.

    for n = 1:100
        A = rand(n,n);
        b = rand(n,1);
        tic
        x = A\b;
        t(n) = toc;
    end
    plot(t)

## See Also

    clock, cputime, etime

(c) Copyright 1994 by The MathWorks, Inc.