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comment Dynamical system problem x(t+1) = Ax(t)
You cannot calculate with MatrixForm (just display result of a matrix calculation with it).
Apr
29
comment differentiating an integral
Is this really a question about the Mathematica software, or just a question about mathematics? Also, you say "p(x)*integral between x and h((..." -- but integral of what?
Apr
25
comment How convert old version 2.2 .ma files to .nb notebooks?
Two such Version 2.2 .ma files on which Version 10.4.1's DeveloperNotebookConvert` seems to do nothing may be downloaded from solidfiles.com/v/y8k22ZqKXAZvM
Apr
24
comment How convert old version 2.2 .ma files to .nb notebooks?
NotebookConvert is not working for me to convert the version 2.2 .ma files. I load Developer and use SetDirectory to make the old notebook's directory the current working directory. If I then evaluate an expression of the form NotebookConvert["old.ma"] (where file old.ma exists in that directory), I get no error but nothing seems to happen -- I find no old.nb in that directory or anywhere else.
Apr
22
comment How convert old version 2.2 .ma files to .nb notebooks?
@RunnyKine: Is that on Windows 10 64-bit? (That's what I have.)
Apr
22
revised How convert old version 2.2 .ma files to .nb notebooks?
added 141 characters in body
Apr
22
comment How convert old version 2.2 .ma files to .nb notebooks?
Is 5.2 the latest version that will do the conversion?
Apr
22
comment How convert old version 2.2 .ma files to .nb notebooks?
Does version 5.2 run on a Mac under OS X El Capitan (10.11)? on a PC running Windows 10?
Apr
22
asked How convert old version 2.2 .ma files to .nb notebooks?
Apr
21
comment how to take complex conjugate of a real variable
If all the parameters are real, just use ComplexExpand.
Apr
19
comment Mathematica Empty Plot FourierSinSeries function
Bad idea to use upper case N as a variable, since that symbol has a built-in meaning.
Apr
9
comment Animate the line integral over a scalar field
What have you tried? You might start with a contour plot of a scalar field, then superimpose upon it a path.
Apr
9
answered ContourPlot of an Implicit Function with a parameter
Apr
4
revised How to approximate the solution of a system of quartic equations
vocabulary correction
Mar
18
comment Taking the derivative of the complex conjugate/absolute value of an interpolating function
For your code, from left[0, 0] I obtain much shorter output, namely, 0. + 0. I) - (0.0000564682 + 0.000273747 I) Derivative[1][Re][ 0. + 0. I].
Mar
17
comment Taking the derivative of the complex conjugate/absolute value of an interpolating function
What's kbar ??
Mar
17
comment Expression in mathematica
Are you aware that upper-case N is the name of a built-in Mathematica function?
Mar
17
comment Taking the derivative of the complex conjugate/absolute value of an interpolating function
Your definition of in has an error: the upper bound for x is not any specific number, but rather an as-yet undefined symbol r.
Mar
12
comment What is a printer's point?
You may find enlightening this discussion of the size of 1 pt relative to inches: tex.stackexchange.com/questions/200934/…
Mar
11
comment TrueQ returning False on true statement
Using Simplify works with newer versions, too including 10.4.