# Calculator logic

Allows you to write out math formulas

Calculated logic blocks currently offer these types of calculations:

Addition

Subtraction

Division

Multiplication

Min

Max

Mean

Mode

St Dev.

Round - Floor

Round - Ceiling

Referencing multiple calculated fields

If else statement

Learn how to use them on Math.js.

**Pro tip**: If you know how to write Math.js commands, you can create your own custom logic.

## Operator keyboard shortcuts

The == sign is not just for numbers, but can also be used for strings of text. You can use it to specify if the user chosen option from R1 is a specific option, *Option 1*.
**R1=="Option 1"**

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