## 10 Reputation

4 years, 131 days

## @Kitonum  Thanks so mush for your ...

Thanks so mush for your help

Thanks for helping me with Maple program

## @Kitonum Thanks so mush for your he...

Thanks so mush for your help, thanks for taking your time and helping me with Maple program.

We have 44 equation like mw.file

How can solve 44 equations        solving_linear_of_equations.mw

## @Carl Love Thanks for guiding me about...

Thanks for guiding me about LUDecomposition

For example we have these equations, how can calculated the coeffitions by this method

## @rlopez  We use LUDecomposition me...

We use LUDecomposition method but this method not usefull for too long system of equations, for example 40*40 or 100*100

Thank you for guiding me

## Thank you...

Thanks for your helping me, it is true.

## program...

Thanks so mush for your help.

Thanks for taking your time and helping me with Maple program.

I truly appreciate you to help me

Excuse me, how can draw my figure like your figure
My figure is

## @Markiyan Hirnyk  Thanks so mush f...

Thanks so mush for your help.

How can I plot it?

Best wishes.

Sincerely,

Arman Shahsavan

## @Markiyan Hirnyk  when r is a func...

when r is a function of theta, we expect f(r, theta) is shown by color in circle (nonsymmetric)  r=0.3..0.5*0.1*cos(theta) and theta=0..2*pi like this

## Thanks so mush for your help. plots:-de...

Thanks so mush for your help.

plots:-densityplot(f, theta=0..2*Pi, r=r1 .. r2, coords=polar, colorstyle = HUE, style = patchnogrid);

By above program, first, initialize theta, the coordinate system seems to be in cartesian because the horizontal axis becomes the value for theta and vertical axis becomes the values for r.

when r is a constant we have figure below for my function f(r, theta), r=0.3..0.5 and theta=0..2*pi

In this figure, f(r, theta) is shown by color in circle (symmetric) in polar coordinate

when r is a function of theta, we expect f(r, theta) is shown by color in circle (nonsymmetric)  r=0.3+0.1*cos(theta)..0.5*0.1*cos(theta) and theta=0..2*pi like this

How can I plot it?

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