Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.



Re: ComplexExpand off by a factor of (1)?
Posted:
Feb 23, 2013 7:01 AM


Hint: in your expression, replace 2*I by 2*k and you'll see why Mathematica gave you the correct value, i.e., exactly what you asked for! On Feb 22, 2013, at 1:05 AM, charles.ces@gmail.com wrote:
> Would someone be able to help me understand why when I enter the expression: > > ComplexExpand[(E^(I*y)  E^(I*y))/2*I] I get a result of Sin[y] instead of Sin[y]? > > Thanks. > > Charles S.
 Murray Eisenberg murray@math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 5491020 (H) University of Massachusetts 413 5452838 (W) 710 North Pleasant Street fax 413 5451801 Amherst, MA 010039305



