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2d
revised What's wrong with Simplify and FullSimplify?
edited tags
2d
awarded  Necromancer
2d
awarded  functions
2d
answered Function to subdivide interval into n evenly-spaced points
2d
reviewed Reviewed Function to subdivide interval into n evenly-spaced points
2d
comment Function to subdivide interval into n evenly-spaced points
The manual also says: "finds a list of about n "nice" numbers that divide the interval around to into equally spaced parts." The keyword here is "about".
2d
comment What's wrong with Simplify and FullSimplify?
V8 returns True, and V9 and V10 return False (Win8.1-64). IMHO the result should be neither True nor False. Looks like a bug indeed. Have you contacted support@wolfram.com?
2d
revised Examining the equations of a Differential Op Amp
added 244 characters in body
2d
answered Examining the equations of a Differential Op Amp
2d
comment Examining the equations of a Differential Op Amp
You state a few contradictory things: you want r1-r3 to vary but you also want that r1=r3=Ra (same for r2 and r4). You can't have both.
2d
comment PDE with Laplacian time derivative term
I note that V10.1 solves this without a hitch. If you click on the >> at the end of the error message you get a somewhat more helpful explanation: "This input generates a message because the equations specify values for the solution on all sides of the solution region." Apparently, a situation that V9 doesn't handle and v10 does.
2d
reviewed Reviewed PDE with Laplacian time derivative term
2d
comment PDE with Laplacian time derivative term
Hi, welcome to Mathematica.SE. The code in your second code block contained some weird characters. I've replaced them with == which seemed to be the intended operator. Please check whether this was correct.
2d
revised PDE with Laplacian time derivative term
added 15 characters in body
2d
reviewed Reviewed Examining the equations of a Differential Op Amp
2d
comment Examining the equations of a Differential Op Amp
Welcome to mathematica.stackexchange.com! I sincerely hope the problems in your country do not make life too miserable for you. As to your code, there are several issues: your definition of the two Gain function is missing the Blank-s (_) that should be there (see this). If you want to make plots you need all the variables/parameters/constants to have numerical values. For plotting, look up the Plot function (there are many more; please use the manual for that).
2d
reviewed Close Small difference between large numbers
2d
reviewed Close Change only tick labels while keeping default ticks
2d
comment my Mathematica has turned orange and not able to find out why
@OleksandrR. To be sure: You set the color profile using the Windows Color Management control panel to the SystemFiles\\Data\\ICC files I mentioned above, or did you do something from within Mathematica?
Jul
1
reviewed Leave Open How to efficiently compile this function? It involves a 3-index Table