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| A fast way to get an exact fraction into its real-number equivalent is to multiply by 1.0 (or just 1.) Example: In[1]:= x = 355/113 Out[1]= 355/113 In[2]:= 1.0 x Out[2]= 3.14159 In[3]:= N[x] ... |
| Often I would like to place some text in a 3D graphic, so that it does not move when the graphic is reoriented. I have several hacks to do this but it would be nice if this were a standard option in the Graphics3D input. |
| This year marks the 100th anniversary of Albert Einstein's epoch-making invention of general relativity. This theory superseded Isaac Newton's Law of Universal Gravitation, which reigned as a fundamental law of nature for some 250 years. The first... |
| A couple of my colleagues have asked how to draw hemispheres in Graphics3D. The following lines of code show two ways of doing this [mcode]SphericalPlot3D[{1, .5}, {\[Theta], 0, \[Pi]}, {\[Phi], 0, \[Pi]}, Axes -> False, Mesh -> False, Boxed ->... |