User Portlet

Prasiddh TRIVEDI

Discussions

Solving Differential equations involving Trigonometric functions. Hey all, I have a differential equation in polar coordinates which descrive time rate of change of $r$ and $\theta$. The equation involves Sin and Cos, following is what I write in Mathematica. [mcode]traj= Assuming[ y[t] > 0 && y[t] AUTHOR: Prasiddh TRIVEDI 6673VIEWS 1REPLIES 10 years ago
Why is Mathematica mis-behaving while finding roots of a simple polynomial? Hello all, I have been using Mathematica for solving some of my differential equations. Following is an equation I encountered during one of my computations. [mcode]In[30]:= FullSimplify[ Solve[1000 k^3 + (-1800 Sqrt[42] - 30) k^2 + (360 Sqrt[42] +... AUTHOR: Prasiddh TRIVEDI 4637VIEWS 7REPLIES 11 years ago