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Using computer-aid approach to solve algebraic problems. Questions with this tag should typically include at least one other tag indicating what sort of algebraic problem is involved, such as ac.commutative-algebra or rt.representation-theory or ag.algebraic-geometry.

11 votes
5 answers
6k views

Finding minimal or canonical expressions for Boolean truth tables

This is not an urgent question, but something I've been curious about for quite some time. Consider a Boolean function in n inputs: the truth table for this function has 2n rows. There are uses of s …
Rhubbarb's user avatar
  • 524
7 votes
2 answers
852 views

Bounds on remainder term of power series of elementary functions

This is mainly a question about the remainder term of power series for elementary functions. I'm very interested in aspects of calculating or computing elementary operations and functions, by which I …
Rhubbarb's user avatar
  • 524
2 votes
4 answers
3k views

Symmetrical Presentation of 4-Dimensional Rotation Matrix

This question is not urgent; just a matter of curiosity... It is relatively easy to generate an arbitrary 3D or even 4D rotation matrix using conjugation (i.e. YXY−1) of orthogonal rotations. I expec …
Rhubbarb's user avatar
  • 524
21 votes

Most helpful math resources on the web

Sloane's OEIS has already been mentioned. A similarly useful site is ISC, Simon Plouffe's Inverse Symbolic Calculator. Here you enter the decimal expansion of a number to as many places as you know, a …
3 votes

Most helpful math resources on the web

I don't know if this reference is of sufficient generality: Finite Calculus: A Tutorial for Solving Nasty Sums by David Gleich https://www.cs.purdue.edu/homes/dgleich/publications/Gleich%202005%20-%20 …
10 votes

Most helpful math resources on the web

edit by jc: As of May 11, 2010, the work has been completed! This is a reference that is not yet complete, but it should be very useful when it finally does arrive: Digital Library of Mathematical F …