![mathematica sum mathematica sum](https://www.wolfram.com/mathematica/new-in-10/inactive-objects/HTMLImages.en/make-addition-and-multiplication-tables/O_10.png)
Mathematica is VERY different from other programming languages. Spending 100-200 intense hours learning the basics of Mathematica programming will make you far more productive and it will be much less frustrating for you and you will need to ask far fewer questions. You need the edition of the book that matches the version of Mathematica you have, the 2nd edition is for MMA5.x, the 3rd edition is for MMA 6 and perhaps a bit of 7, no edition covers the new material in version 8.
![mathematica sum mathematica sum](https://i.stack.imgur.com/JlsAN.png)
"Mathematica Navigator" is an excellent book with many simple practical examples. If you study every sentence in that book until you understand them you can learn much of what you need for the simplest use of Mathematica. "Applied Mathematica: Getting Started, Getting It Done" by Shaw and Tigg is very old and can be purchased used very cheaply.
#Mathematica sum how to#
I would strongly urge you to purchase a good book teaching how to use Mathematica if that is possible for you. It would have required dozens of incomprehensible posts trying to figure out broken code before we might have guessed what you actually wanted. Your example of the output you needed was very helpful.
![mathematica sum mathematica sum](https://i.stack.imgur.com/hncoV.png)
But perhaps the output of Trace when limited to the patterns that I included as the last argument, or not even using Trace and just using qSolve alone may be sufficient for what you actually need. In:= qSolve:=Sum,īy making this MUCH more complicated and including more things that you will not understand it would be possible to provide output much closer to the step by step display that you showed. Solid angle subtended by a tetrahedron at its vertex given the angles between the consecutive lateral edges meeting at that vertex & solid angle subtended by a triangle at the origin given the position vectors of its vertices (Application of HCR's cosine formula).