# LimitBelow Command

From GeoGebra Manual

- LimitBelow[ <Function f>, <Value t> ]
- Computes the left one-sided limit of the function
*f*for given value*t*of the main function variable. **Example:**`LimitBelow[1 / x, 0]`

yields -\infty .

**Note:**Not all limits can be calculated by GeoGebra, so

*undefined*will be returned in those cases (as well as when the correct result is undefined).

## CAS Syntax

- LimitBelow[ <Expression f>, <Value t> ]
- Computes the left one-sided limit of the function
*f*for the given value*t*of the main function variable. **Example:**`LimitBelow[1 / x, 0]`

yields -\infty .

- LimitBelow[ <Expression f>, <Variable v>, <Value t> ]
- Computes the left one-sided limit of the multivariate function
*f*for the given value*t*of the given function variable*v*. **Example:**`LimitBelow[1 / a, a, 0]`

yields -\infty .

**Note:**

- Not all limits can be calculated by GeoGebra, so
*?*will be returned in those cases (as well as when the correct result is undefined). - See also Limit Command and LimitAbove Command.