FCIteratedIntegral[f,x,a,b]
is a special head indicating that the function represents an iterated integral or a linear combination thereof and that it should be integrated in from to . This notation is understood by the function FCIteratedIntegralEvaluate
that does the actual integration.
Notice that before applying FCIteratedIntegralEvaluate
all rational functions of in should be converted to the FCPartialFractionForm
representation.
Overview, FCIteratedIntegralEvaluate, ToFCPartialFractionForm
= 1/(1 + x) fun
= FCIteratedIntegral[ToFCPartialFractionForm[fun, x], x, a, b] int
[int] FCIteratedIntegralEvaluate