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In addition to basic arithmetic in
, SHASTA provides the following
operations on differential operators:
`adjoint`, `apply`, `coefficient`,
`decompose`, `degree`, `dispersion`,
`eigenring`, `element`,
`exteriorPower`,
`factor`,
`hyper`,
`kernel`,
`leftGcd`, `leftLcm`,
`Loewy`,
`makeIntegral`, `normalize`,
`polynomialSolution`, `rationalSolution`,
`rightGcd`, `rightLcm`,
`sections` `shift` and `spread`.
They are described in detail in the following manual pages.
Note that an element of
can be used
whenever the type of an argument is given as
,
and that computes the Euclidean quotient of
by on the right.

**Subsections**

Manuel Bronstein
2002-09-04