Free tool
Calculator
Type what you want worked out. Fractions and roots stay exact, a name keeps its value from one line to the next, and a graph is one line.
Start from an example — choose one to put it in the calculator:
Exact or decimal? 1/3 + 1/6 gives 1/2 and sqrt(50) gives 5*sqrt(2): nothing is rounded away. Wrap a line in decimal(...) when you want the decimal instead.
How to write it
- Use
*to multiply and^for a power:3*x^2. - One calculation a line. Give a value a name and use it below:
a = 7/2, thena^2 + 1/4. - Fractions and roots are kept exact. Ask for a decimal with
decimal(...). - For a graph, choose "A graph" above and change the formula inside the quotes.
- It runs in your browser. Nothing you type is sent to us.