Rank: Advanced Member Groups: Registered
Joined: 10/12/2009(UTC) Posts: 238 Location: Cali, Colombia Was thanked: 79 time(s) in 60 post(s)
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Hi, I'm trying to solve: S:=157.34 b:=-0.34 N=10^6 aa:=solve(S=A*N^b,A,16000,17000) Then, SMath give me this message: "No real roots". I found ("by hand" that the answer is A=1.69*10^4. So, what is the problem with SMath?
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Rank: Administration Groups: Registered, Advanced Member Joined: 23/06/2009(UTC) Posts: 1,740 Was thanked: 318 time(s) in 268 post(s)
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Hello oscampo, It seems you are wrong. This is not a nonlinear equation on A, therefore: A←S/{N^b}A=17251,9879If you still want to use "solve", the problem is of the numerical nature and you have to plot the function and use the range as small as possible arround the solution. Try this: solve(S≡A*N^b;A;17200;17300)=17251,9879Regards, Radovan Edited by user 17 April 2010 03:15:47(UTC)
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