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These are questions asked by Alger

Dear all,

I want to plot for example cos(theta) from 0 to 2*Pi inside a circle at a radius R. The axis theta of the ploted function is at a radius R.

Is it possible ?


Dear all,

Is there a Maple command to get ColumnGraph in 3D as bar3 in Matlab.

In 2D, I use:

Statistics[ColumnGraph](A);  # equivalent to bar(A) in Matlab


Dear all,

I know how interpolating curves using 1D Fourier tranform.


How to use 2D Fourier transform to find a 2D Fourier series to interpolate surfaces as:

f := proc (x, y) options operator, arrow; sin(x)^2+cos(y)^2 end proc

plot3d(f(x, y), x = 0 .. Pi, y = 0 .. Pi)

Or surface data [x,y,f(x,y)].

Thank you

Hi all

How to read a value from keyboard of PC when executing a maple document and assign it to a variable ?


Hi all,

I have this small code as example:

> restart:with(LinearAlgebra):
> e1:=5*x1-x2+6*x3+10*x4-10;

                 e1 := 5 x1 - x2 + 6 x3 + 10 x4 - 10

> e2:=x1-x2+x3-10*x4;

                      e2 := x1 - x2 + x3 - 10 x4

> e3:=2*x1+3*x2-8*x3-x4+20;

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