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Nov
12
comment A new tag for MMA or list of published articles which used Mathematica
one problem you have is that most authors dont reference software used for basic functionality such as plotting.
Nov
10
comment Using FortranForm for d0 notation?
I see, you need to escape some of the "*" (I edited to fix that..)
Nov
10
revised Using FortranForm for d0 notation?
added 3 characters in body
Nov
10
comment Finding roots of transcendental equation
Sorry I hadn't followed from the beginning. Looking at the edit history the code in the very first post is not too unwieldy, but has a unbalanced parentheses and some other minor bugs. You might revert to that and clean it up to make sure it works (ie. shows the problem )
Nov
10
comment Finding roots of transcendental equation
appropriate code to post should be something folks can copy/paste and run. ( as is, exp1,exp2, kymn1,kzn are undefined functions, and you have a bunch of unspecified constants, a3,a4,W, ... )
Nov
10
revised Using FortranForm for d0 notation?
added 593 characters in body
Nov
10
comment Using FortranForm for d0 notation?
I understood you asked for the antiquated d0 (not "do") notation. That's harder to do with no advantage over the modern form. ( I cant see at all how a^2 becomes a2 though.?)
Nov
10
answered Using FortranForm for d0 notation?
Nov
7
revised How to show output of a matrix in m(1,1)=a11 m(1,2)=a12 …in this way…i have 50 *50 size matrix
added 6 characters in body
Nov
7
revised How to show output of a matrix in m(1,1)=a11 m(1,2)=a12 …in this way…i have 50 *50 size matrix
added 52 characters in body
Nov
7
answered How to show output of a matrix in m(1,1)=a11 m(1,2)=a12 …in this way…i have 50 *50 size matrix
Nov
7
revised Compare 2 lists
added 308 characters in body
Nov
7
answered Compare 2 lists
Nov
6
comment Increase Precision in Numerical Integration
you do know dividing by 2.0converts the result to machine precision regardless of what NIntegrate does.. WorkingPrecision -> 20 , PrecisionGoal -> 20 should do what you want if you make that an integer 2
Nov
5
comment How can I use 'NIntegrate' to show the error?
the round parenthesis under the square root in the integrand definition are a syntax error...please post actual code not a picture.
Nov
5
comment How can I use 'NIntegrate' to show the error?
oops, looking again the range of theta1star is {0,Pi}, so it doesn't zero out, but still you can do that integration (and a couple of others) analytically first.
Nov
5
comment How can I use 'NIntegrate' to show the error?
Your integral is analytically exactly zero since You have Integrate[ Sin[theta1star] * whatever , {theta1star,0,2 Pi} , .. ]
Nov
3
comment Analytic approximation of NDSOLVE
note you can use the indefinite integral to get a generic solution without making the assumptions: FullSimplify[# - (# /. L -> L0)] &@ Integrate[1/(L^(-3/2) - c), L]. This will naturally give you L>L0 for appropriate values of c..
Oct
31
comment Mathematica integration error
you need only the assumption Element[{x, y}, Reals] ( adding that assumption to Integrate does not fix the original anomaly though )
Oct
31
comment Why does the documentation call functions “pure”?
Mathematics definition of pure function is completely different. "Pure functions allow you to give functions which can be applied to arguments, without having to define explicit names for the functions. ". Maybe that wiki pages needs an 'alternate uses' section.