Ratch

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16 years, 122 days

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These are questions asked by Ratch

Why does fsolve miss some solutions?  For instance fsolve(sqrt(x2+4x-3)=-1+2x,x) only finds solution x=2, whereas x=2/3 is also a solution.

Ratch

I am trying to see what is in the startupcode file by using the Edit->Startup Code.  I know that somewhere is a command called interface(imaginaryunit=j) because it works when I restart.  I cannot even change anything because it does not show anything in the editor and nothing takes effect.

Ratch



One of the examples in the Overview of Vector Calculus documentation is int(x^2+y^2),[x,y]=Circle(<0,0>,r) .  I can find no documentation on "Circle"  What does the above expression mean anyway?

Ratch

To the Ineffable All,

     I don't understand what MapToBasis is doing to get the results shown in the example program.  Specifically, why are the x-y components interchanged and a sign added?  It seems to plot OK, but the components of the vector appear wrong to me. 

Ratch

VectorCalculus.mw

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