CAS view

[lrdheat]

I've done something that I can't recover from...when integrating the definite integral of sin(x) from some value to another in CAS, I get the correct result. When I take the indefinite integral of sin(x), I get 0. It works if I use sin(X)dX. (It rewrites as SIN(X)dX) How do I restore CAS to correctly input my work?

[Gilles]

(11-14-2014 06:30 PM)lrdheat Wrote:  I've done something that I can't recover from...when integrating the definite integral of sin(x) from some value to another in CAS, I get the correct result. When I take the indefinite integral of sin(x), I get 0. It works if I use sin(X)dX. (It rewrites as SIN(X)dX) How do I restore CAS to correctly input my work?

Hi,

try : purge(x)

probably you have defined x:=0

[lrdheat]

Thanks!