> For the complete documentation index, see [llms.txt](https://swatplus.gitbook.io/io-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swatplus.gitbook.io/io-docs/introduction-1/decision-tables/lum.dtl/lim_op.md).

# lim\_op

The limit operators available and the limit and condition variables they are used for are listed in the table below. 

<table><thead><tr><th width="139">Operator</th><th>Description</th><th>Limit variable</th></tr></thead><tbody><tr><td>*</td><td>Multiply limit variable by limit constant</td><td>fc, wp, ul (soil_water) <br>evol, pvol (vol and vol_wet)</td></tr><tr><td>+</td><td>Add limit constant to limit variable</td><td>fc, wp, ul (soil_water) <br>evol, pvol (vol and vol_wet)</td></tr><tr><td>-</td><td>Subtract limit constant from limit variable</td><td>fc, wp, ul (soil_water) <br>evol, pvol (vol and vol_wet)</td></tr><tr><td>/</td><td>Divide limit variable by limit constant</td><td>fc, wp, ul (soil_water) <br>evol, pvol (vol and vol_wet)</td></tr></tbody></table>