# Question:Maple statement freezes my computer

## Question:Maple statement freezes my computer

Hi: The following statements (output from a previous Maple calculation) results in a computer "freeze" when run under the latest version of Maple10 (Classic Worksheet) on a Windows XP machine. Definition: "freeze" - cursor halts midscreen and the machine refuses to respond to any keyboard commands, including ALT-CTRL-DEL 1. Can anyone reproduce this? WARNING - do not run this program if you have other windows open with data you want to retain. 2. Can anyone suggest how I can get the terms (1/x)^(-n1) and x^(-n1) to cancel? I've tried "simplify", "collect" and "combine" without success. Mike Ans:=2/3*GAMMA(1/2*(2*n*x+2*x+sqrt(-x))/x)*GAMMA(1/2*(2*n*x+2*x-sqrt(-x))/x)*(1/x)^n*(2^(2*n+2)*x^(n+2)*Pi*(Sum((2*n1^2+3*n1+1)*n1*(1/x)^(-n1)*4^(-n1)*x^(-n1)/(GAMMA(1/2*(2*n1*x+sqrt(-x))/x)*(4*n1^2*x+4*n1*x+4*sqrt(-x)*n1+2*sqrt(-x)-1)*GAMMA(1/2*(2*n1*x-sqrt(-x))/x)*(4*n1^2*x+4*n1*x-4*sqrt(-x)*n1-2*sqrt(-x)-1)), n1 = 0 .. n-1))+3*4^n*x^(n+1)*Q(0)*sqrt(-x)*sin(1/2*Pi/sqrt(-x)))/(x*Pi); value(Ans);
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