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visits member for 1 year, 11 months
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Apr
14
comment How to parallelize this code
Just to use all cores in computing the M
Apr
13
asked How to parallelize this code
Apr
9
asked Roots of characteristic equation of sixth order
Apr
1
comment Plotting solutions of a 4th order polynomial equation
Thank you Suba Thomas. This is it.
Apr
1
accepted Plotting solutions of a 4th order polynomial equation
Mar
31
comment Plotting solutions of a 4th order polynomial equation
I don't understand light and dark green and lines there while roots moving
Mar
31
asked Plotting solutions of a 4th order polynomial equation
Mar
25
asked ExpToTrig transforms solution to 4th order ODE into unwanted form
Mar
24
asked Simplify DSolve solutions (all roots are known)
Mar
24
comment NDSolve in exact points - nonlinear equation (Degrees and Radians confusion)
so professional code
Mar
24
comment NDSolve in exact points - nonlinear equation (Degrees and Radians confusion)
Thank you very much
Mar
23
revised NDSolve in exact points - nonlinear equation (Degrees and Radians confusion)
added 207 characters in body
Mar
23
comment NDSolve in exact points - nonlinear equation (Degrees and Radians confusion)
I used FindMaximum[zsol[t], t] on the segment but doesn't work? I obtained value which is not maximum because I can see from the diagram
Mar
23
accepted NDSolve in exact points - nonlinear equation (Degrees and Radians confusion)
Mar
23
comment NDSolve in exact points - nonlinear equation (Degrees and Radians confusion)
I think I can handle, thank you very much
Mar
23
comment NDSolve in exact points - nonlinear equation (Degrees and Radians confusion)
just for first cycle
Mar
23
comment NDSolve in exact points - nonlinear equation (Degrees and Radians confusion)
I need position of z, velocity z', angular velocity ϕ' and angular acceleration ϕ'' for various ϕ which I choose and for which t. It should be table of 6x7 of data? {z[t], z'[t], ϕ'[t], ϕ''[t], z''[t], t}
Mar
23
asked NDSolve in exact points - nonlinear equation (Degrees and Radians confusion)
Mar
23
comment Solutions of cubic equation D>0 or D<0
thank you very much. I just wanted to see which substitutions did you use for presenting the solutions.
Mar
22
comment Solutions of cubic equation D>0 or D<0
@ubpdqna code is great and everything is working. I just followed the code and in the last step I thought that if I substitute parameters I obtain in the last step {-1.03412, -1.03412, 0.467062 - 0.865364 I, 0.467062 + 0.865364 I, 0.467062 - 0.865364 I, 0.467062 + 0.865364 I} and solutions which code gave is {{x -> -0.000500125}, {x -> -0.000250062 - 0.316228 I}, {x -> -0.000250062 + 0.316228 I}}. My question is how to see roots in analytic form which you used in the code?