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Apr
17
revised How to find lattice points on a line segment?
edited tags
Apr
17
answered Monotone, periodic 1d-interpolation with continuous 1st order derivative
Apr
17
comment Finding the number of solutions to a diophantine equation
Generating functions can be nice sometimes...
Apr
17
revised Finding the number of solutions to a diophantine equation
edited body
Apr
17
comment Find point at which equation stops having roots (if it exists)
I presume you've seen this already?
Apr
17
comment Solving recursion relations using Mathematica
You have tried RSolve[] already?
Apr
17
revised Find point at which equation stops having roots (if it exists)
edited tags
Apr
17
revised Finding all roots of the system of two complex equations
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Apr
17
answered How to reduce the InterpolatingFunction building overhead?
Apr
17
comment Problem with interpolation
...and where are data11 and data12?
Apr
17
comment Simulate a simple spinner
For random wiggly functions, you might want to use Perlin noise.
Apr
17
comment Conflict among Permutations and Graph utilities once Combinatorica is loaded
Seen this?
Apr
17
revised Efficient Generation of Random Variates from a Copula Distribution
edited body
Apr
17
comment Why doesn't Mathematica plot $n(-1)^n$ with Plot?
I'm using a particular definition of "principal value". It would seem that what Alpha uses is equivalent to the behavior of Surd[], not Power[].
Apr
17
comment Why doesn't Mathematica plot $n(-1)^n$ with Plot?
@Spawn, I don't quite think so. To take $(-1)^{2/3}$ as an example, the real value is not the principal value, at least if we want our power function to have a branch cut that agrees with our branch cut choice for the logarithm.
Apr
17
comment Why doesn't Mathematica plot $n(-1)^n$ with Plot?
@Spawn, Ah, for that you don't want the principal value of Power[]. I understand that Mathematica these days has the Surd[] function; that would be useful in the situation you think of.
Apr
17
revised characteristic polynomial based on differential equation
added 110 characters in body
Apr
17
revised characteristic polynomial based on differential equation
added 110 characters in body
Apr
17
answered characteristic polynomial based on differential equation
Apr
17
revised How to plot a 3D surface with a simple black and white style?
edited tags