This paper first exposes some of the defects in the interval arithmetic algorithms of Moore and Krückeberg. Then it identifies classes of problems on which these algorithms compute "optimum bounds".

Math anxiety is a widespread challenge, but strategic preparation can conquer it. Experts highlight prioritizing key chapters like Polynomials and Trigonometry, alongside consistent, timed practice.

The newspaper said errors included incorrect answers to multiplication questions, a plus instead of a minus symbol in an algebra equation and a missing bracket that made a calculation incorrect.