# isapprox

Below is a demonstration of the features of the `isapprox` function

## Contents

```
clear; close all; clc;
```

## Syntax

`[L]=isapprox(A,B,tolLevel);`

## Description

This function returns if A is approximately equal to B (to within tolLevel) in the form of the logical L. In other words the function simply evaluates: L=abs(A-B)<tolLevel;

## Examples

tolLevel=1e-4; % The tolerance level to use A = - pi; %Example number B = A + tolLevel/100; % Small difference C = A + tolLevel*100; % Big difference D = A + tolLevel; % Difference equal to the tolerance level

Using isapprox here should return a true since the difference is smaller than the tolerance.

L1 = isapprox(A,B,tolLevel)

L1 = logical 1

Using isapprox here should return a false since the difference is larger than the tolerance.

L2 = isapprox(A,C,tolLevel)

L2 = logical 0

Using isapprox here should return a false since the difference is equal not smaller than the tolerance.

L3 = isapprox(A,D,tolLevel)

L3 = logical 0

* GIBBON* www.gibboncode.org

*Kevin Mattheus Moerman*, [email protected]

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