Forwarding to sage-support where this might get more traction.
---------- Forwarded message ---------- From: Alan <[email protected]> Date: May 26, 11:44 pm Subject: Solving equations involving exp, Maxima To: sage-devel Hello, I have 2 questions: 1. Why do the following equations give different answers? sage: solve([exp(x)==exp(0)],x) [x == 0] sage: solve([exp(x)==exp(-x)],x) [x == I*pi, x == 0] sage: solve([exp(x+1)==exp(-x+1)],x) [e^(x + 1) == e^(-x + 1)] 2. Is there any way to make 'solve' recognize "obvious" solutions. For example, sage: solve([x==exp(-x+1)],x) [x == e^(-x + 1)] In Mathematica we get: Solve[x==Exp[-x+1],x] ...(some warnings)... {{x->1}} In Maple we get:>solve(x=exp(-x+1),x) 1 I have not checked if other software finds the solution x=1. Thank you very much for your help. Alan -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
