repeated root

repeated root

[ri′pēd·əd ′rüt]
(mathematics)
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where R is a rational function of its two arguments, P is a polynomial of degree 3 or 4 with no repeated roots, and c is a constant.
Exceptions to this general rule are when P has repeated roots, or when R(x, y) contains no odd powers of y.
c] R,(t, [square root of P(t)]dt, where R is a rational function of its two arguments, P a polynomial of degree 3 or 4 with no repeated roots, and c is a constant.

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