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Jun
5
comment How to make a twice-differentiable function that approximates some data?
did you mean to say you "do not want to pass though" all the points?
Jun
5
comment How to speed up import of large csv table?
my first advice is to not use CSV in the first place. Assuming its all numbers use a binary format. That said, I've found raw Open/Read operations to be faster than Import (again assuming its all numbers)
Jun
4
comment Reducing a system of vector equations
The brute force approach is to express all of your vectors as lists with symbolic components. The results are usually pretty unwieldy however.
Jun
4
comment Reducing a system of vector equations
here, and in your answer, your second $Assumptions overwrites the first one. Sort of moot though because I'm pretty sure Reduce cant make any use of the vector assumption.
Jun
4
revised Logarithmic x-axis for ListPlot?
added 53 characters in body
Jun
4
answered Logarithmic x-axis for ListPlot?
Jun
4
comment Fitting a Parametric Curve
mathematica.stackexchange.com/a/22587/2079
Jun
4
answered Solving an equation takes too long
Jun
4
comment What do the X and Y axis stand for in the Fourier Transformation in wolfram mathematica?
start here en.m.wikipedia.org/wiki/Discrete_Fourier_transform.
Jun
3
awarded  Enlightened
Jun
3
awarded  Nice Answer
Jun
3
comment How can “lift” a plot which passes near y=0?
Not quite a dup because of the log scale.. now can anyone make snese of what a negative origin on a log scale actually does? AxesOrigin -> {10^9, .8} seems about the same as {10^9,-.2}...
Jun
3
comment How can “lift” a plot which passes near y=0?
Looks like B[M] goes to 1 not 0 ?? Try PlotRange -> {.9, Automatic}
Jun
2
answered Orderless storage of tabulated function values
Jun
2
comment Privilege Violation
you will get that error if you opened and forgot to close it in mathematica...
Jun
2
revised Both FindMinimum and NMinimize have trouble
added 1 character in body
Jun
2
comment Both FindMinimum and NMinimize have trouble
The symbolic MC / FullSimplify was the big time waster.. but apply the rules to all the gamma's and omegas as well ( The plot renders in less than a second now, was over a minute ). The NumericQ issue is common to most functions that perform an "apparently" purely numeric task (NIntegrate, FindRoot, etc ). They initially do a symbolic evaluation, so in case where that makes no sense you force them to skip it essentially.
Jun
2
revised Both FindMinimum and NMinimize have trouble
added 412 characters in body
Jun
2
revised Both FindMinimum and NMinimize have trouble
added 412 characters in body
Jun
2
answered Both FindMinimum and NMinimize have trouble