• ← Expand
• → ExpandDenominator

ExpandAll

WMA link

ExpandAll[expr]

expands out negative integer powers and products of sums in expr.

ExpandAll[expr, target]

just expands those parts involving target.

• • ExpandAll[(a + b) ^ 2 / (c + d)^2]

ExpandAll descends into sub expressions

• • ExpandAll[(a + Sin[x (1 + y)])^2]

• • ExpandAll[Sin[(x+y)^2]]

• • ExpandAll[Sin[(x+y)^2], Trig->True]

ExpandAll also expands heads

• • ExpandAll[((1 + x)(1 + y))[x]]

ExpandAll can also work in finite fields

• • ExpandAll[(1 + a) ^ 6 / (x + y)^3, Modulus -> 3]