Grade school math students are likely familiar with teachers admonishing them not to just guess the answer to a problem. But a new proof establishes that, in fact, the right kind of guessing is ...

SYMBOLIC Solve for n: n x 6+66=81.9 NON-NARRATIVE WORD PROBLEM Starting with a number, if I multiply it by 6 and then add 66, I get 81.9. What number did I start with? STORY PROBLEM ...

GCSE AQA Solving linear equations - AQA Solving equations Forming, using and solving equations are skills needed in many different situations. From balancing accounts to making sense of a mobile ...

Learn about and revise how to solve equations using the balance method with this BBC Bitesize GCSE Maths Edexcel study guide.

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Y. Saad, Krylov Subspace Methods for Solving Large Unsymmetric Linear Systems, Mathematics of Computation, Vol. 37, No. 155 (Jul., 1981), pp. 105-126 ...