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Question: how do I really unassume a variable in Maple?

Question:how do I really unassume a variable in Maple?

tintin 128 Maple
September 26 2007
0
Hello everyone, thanks for your help in advance! To perform the integral of this function over rho: >f1 := alpha*(3*lambda^3*rho*d/(rho^2 + d^2)^(5/2)); I need to assume the variable (d > 0): so, >assume(d > 0); >I1 := int(f1,rho=a..b); >I1; 3 2 2 (3/2) 2 2 (3/2) alpha lambda d~ (-(b + d~ ) + (a + d~ ) ) - ----------------------------------------------------- 2 2 3/2 2 2 3/2 (a + d~ ) (b + d~ ) but I cannot now plug in real numbers for d in I1 (e.q. d := 3.0). I get the same I1 expression as above, with d~. I tried unassume(d > 0), but it did not help. Anyway, thanks for your help. -Dan
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