Symbolic expansion.
Syntax
R = expand(S)
Description
expand(S) writes each element of a symbolic expression S as a product of its factors. expand is most often used only with polynomials, but also expands trigonometric, exponential, and logarithmic functions.
Examples
expand((x-2)*(x-4)) returns
x^2-6*x+8
expand(cos(x+y)) returns
cos(x)*cos(y)-sin(x)*sin(y)
expand(exp((a+b)^2)) returns
exp(a^2)*exp(a*b)^2*exp(b^2)
expand(log(a*b/sqrt(c))) returns
log(a)+log(b)-1/2*log(c)
expand([sin(2*t), cos(2*t)]) returns
[2*sin(t)*cos(t), 2*cos(t)^2-1]
See Also
collect, factor, horner, simple, simplify, syms
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