"The DaVinci Code" meets "Clueless" in this hilarious adventure romance aboutDigit, a code-breaking math geek, who uses her brains to catch the terroristsand wi

Introduction to the mathematics involved in designing identification codes for everyday goods.

Digit attends MIT, where she hopes to lead a normal life. But Jonas Furnace, the ecoterrorist she foiled before, knows where she is, and he's gunning for her.

Long ago, fish fins evolved into the limbs of land vertebrates and tetrapods. During this transition, some elements of the fin were carried over while new featu

Gives concrete examples of how to justify the validity of every single digit of a numerical answer.