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Checkbox calculator This JavaScript is just a simple checkbox calculator. Works great as a shopping cart. Values for the checkboxes are defined in the .js code.

Category: Calculation

JavaScript Quartic Equation Solver 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.

Category: Calculation, Math

Chemistry Calculator Using basic theory and this calculator, you can quickly find the answers to your chemistry stoichiometry equations.

Category: Calculation

Functional Calculator Provides all the basic functions, including finding the square root. A small but powerful script.

Better Calculator A calculator code with memory screen, built-in help screens, and new window function.

Phone number formatter Formats phone number to the standard (xxx)xxx-xxxx format. This JavaScript will first eliminate all non-numeral values and check to see whether the value is a valid 10 digit long phone number. If it is, the number is formatted with the parenthesis and the dash and returns the value to the phone number textbox. If less than 10 numbers, a blank value is returned and an error message shows up.

Category: Calculation

High-Tech Calculator This calculator code can do everything! Besides the basic functions: add, subtract, multiply, and divide. It can take the reciprocal, cos, sin, and tan of a number, square root, and has special square and cube buttons. Also does any power of a number you want, and looks great at the same time.

GCD/LCM Calculator This calculator code can quickly determine the Greatest Common Factor and Least Common Multiplier between two or three numbers.

Category: Calculation, Math

Advance calculator with helper This is a different script to make a advance calculator code with helper on the we page.

Inches and Centimeters Change inches to centimeters and back using this short, sweet script. Very easy to use, just type in the number and click.

JavaScript by day

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