Resources

• //INIT: Using variables
• //PROCESS: Basic math
• //STYLE: Space out mathematical expressions


• math.com's formulas and tables
• basic-mathematics.com's basic math formulas

The assignment

Create a page that will calculate the answer to a formula, given some information.

1. Choose a formula for you to calculate
2. Create a the HTML of your page. You will need:
• A title
• A description of what your page will do
• An input line for the user to enter something
• A button to trigger the calculations
• A place for an answer to appear
3. Give each text input, button, and output area an ID
4. Use Javascript to attach onclick to buttons and onchange to text input areas
5. Create a function that will:
1. read the input line, and store the value in a variable
2. perform a calculation, and store the result in a variable
3. output the result into an element using .innerHTML

HINT: look carefully at the //PROCESS: Basic math example code

Saving your work

Use Save as... to save the empty template as "2.04S-FormulaSolver-LastName.html" in your Computer Programming 12 directory.

Extend and expand

Use CSS to style your page.

Find the most complex formula you can with multiple variables.