User Portlet
Featured Contributor
| Discussions |
|---|
| did you try DSolve? |
| the complexity of Reduce is double exponential |
| only the lambdas for inequality constraints should be >= 0 Code In[1]:= (* Generate the Karush-Kuhn-Tucker Equations *) KTEqs[obj_ (* objective function *), cons_List (* constraints *), vars_List (* variables *)] := ... |
| looks like a bug |
| I wanted to see if covariant and contravariant coordinates could be represented in Mathematica and settled on using underscripts and overscripts, since superscripts are exponents. I'm posting the notebook as images and also attaching it. You may... |
| https://user.wolfram.com/portal/myProducts.html |
| InstallR[] works in version 12, but not in Version 12.1 In[1]:= $Version Out[1]= "12.0.0 for Microsoft Windows (64-bit) (April 6, 2019)" In[2]:= Needs["RLink`"] In[3]:= InstallR[] In[4]:=... |
| You should post your Mathematica code. |
| Thanks, however, need all four quadrants, but this works. In[4]:= FullSimplify[Cos[3/4 ArcTan[x, y]] // TrigToExp, Assumptions -> Element[{x, y}, Reals]] Out[4]= ((x + I y)^(3/2) + (x^2 + y^2)^(3/4))/(2 (x + I y)^( 3/4)... |