In responding to a student question, Dr. Math provides a brief overview of hyperbolic functions.

This page gives a brief explanation on how to compute compound interest.

At this site Dr. Math answers a question about credit card balance payoffs. An advanced algebraic solution is offered.

This question and answer site provides information about stellated dodecahedrons, as well as several internet links to this topic.

This question and answer site covers lateral area, total area, and volume of a rectangular solid.

This question and answer site poses a problem dealing with the volume of a partly filled cone.

This question and answer site gives the formulas for area and volume of a cone.

This Q & A forum has a question answered on how to find the apothem of a hexagon.

Contains a short summary on imaginary numbers and several links to its related fields. Also provides several examples and explanations for understanding.

This Math Forum site contains a brief proof of De Moivre's Theorem ((cos(x)+isin(x))^n = cos(nx) + isin(nx)) Where n is an integer.

This question and answer site solves a volume problem for a triangular tank.

Do you think you know weather a sphere is two dimensional or three dimensional? Read this question posed to Doctor Math, very interesting.

This question and answer site provides links to sites that show how to mathematically turn a sphere inside out.

This question and answer site from The Math Forum with Dr. Math discusses the angle between two adjacent faces of an octahedron. Links are also provided for additional information on related subjects.

Dr. Math offers a way to calculate the altitude of a triangle using only the lengths of the sides of the triangle. He briefly explains how this was used by the Egyptians long ago.

This site defines what a prism is and gives formulas for surface area and volume. Contains related links.

This site gives a brief explanation of cross products.