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# chi

## Description

This function is a method function, defined in the core so multiple packages can add methods to it.

## See also

- chi(AbstractSheaf) -- compute the Euler characteristic of an abstract sheaf
- chi(CoherentSheaf) -- compute the Euler characteristic of a coherent sheaf

## For the programmer

The object chi is a method function.

The source of this document is in /build/macaulay2-88fgJW/macaulay2-1.25.11+ds/M2/Macaulay2/packages/Macaulay2Doc/shared.m2:26:0.