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# Latex not parallel symbol

LaTeX function \nparallel is a mathematical symbol used to represent the non-parallel relationship between two objects or lines. This command is often used in geometry or vector analysis to show that two lines or planes are not parallel.

## Command \nparallel

This function requires the amssymb package to be called in the preamble.


\usepackage{amssymb}



First example:


$a \nparallel b$



which gives

$$a \nparallel b$$

Second example:

The lines $d_1$ and $d_2$ are not parallel:


$d_1 \nparallel d_2$



$$d_1 \nparallel d_2$$