A fraction calculator code that performs addition, subtraction, multiplication, and division on two fractions. It also reduces the result to the lowest terms.

This is a very simple calculator, all done with javascript. Just click the numbers and the operators and use the '=' button to calculate! This is a neat example of the LIMITLESS powers of JavaScript.

This JavaScript will validate an ABA routing number according to a given algorithm. (Although the number may be valid, it may not be actually assigned to a financial institution.)

Calculate the percentage of increase/decrease between two units. A simple, effective script.

Displays the Fibonacci Sequence of Numbers as entered by the user. Warning: This is very processor intensive, do not enter a large number.

An order form which utilizes checkboxes and radio buttons for making a selection. The checkbox only allows one quantity of any item to be ordered, while the radio button only allows for one item within a defined group to be ordered. Script updates the order total as the visitor makes his/her selections, also note that the order total can not be manually altered by the visitor. Works in MSIE and Opera.

A JavaScript calculator code that calculates your monthly loan payment.

This simple JavaScript code example can solve quartic equations in the form of ax^4 + bx+3 + cx^2 + dx + e = 0. Another way to get answers but do not want to calculate more.

Enter any keyboard character and the Ascii Engine outputs the character's equivalent in Ascii Decimal, Ascii Hex, and even binary.

Here is a really simple JavaScript calculator code - with just 5 functions! (Add, subtract, multiply, divide, and power) This example can help you see how JavaScript evaluates math functions! Check it out.