# Risch algorithm

The

**Risch algorithm** is an

algorithm for indefinite integration (finding antiderivatives). Part of its background theory is based on Liouville's principle from the

19th century.

The original paper was:

- Risch,R.H.
- The Problem of Integration in Finite Terms.
- Trans. A.M.S. 139(1969) pp. 167-189.