# assumptions

Show assumptions affecting symbolic variable, expression, or function

## Description

## Examples

## Input Arguments

## Tips

When you delete a symbolic object from the MATLAB workspace by using

`clear`

, all assumptions that you set on that object remain in the symbolic engine. If you declare a new symbolic variable with the same name, it inherits these assumptions.To clear all assumptions set on a symbolic variable

`var`

use this command.`assume(var,"clear")`

To clear all objects in the MATLAB workspace and close the Symbolic Math Toolbox™ engine associated with the MATLAB workspace resetting all its assumptions, use this command.

`clear all`

## Version History

**Introduced in R2012a**