# How to Create a Custom Math Formula

Create your own custom math formulas inside of Adalo

*Skill Level: Intermediate*

In-Depth

When you add Magic Text, the last option in the menu is "New Formula...". When you select this option, a chip called "Custom Formula" is added to your text box. To enter the formula:

- Click on the Custom Formula chip to open the formula editor
- Here you can type any number, as well as the following operators
`+`

for addition`-`

for subtraction`/`

for division`*`

or`x`

for multiplication`(`

and`)`

for parentheses

- You can also insert a Magic Number by clicking the Magic Number icon
- Magic Numbers use Number properties from your database
- The Magic Number icon will also give you the option to insert a function. The following functions are supported:
**Round**- Rounds a number to the nearest integer
- ROUND(4.32) will display was 4
- ROUND(4.5) will display as 5

**Integer**- Removes the decimals from a number. (You can also think of this as rounding down.)
- INT(4.32) will display as 4
- INT(4.5) will display as 4
- INT(4.999) will display as 4

**Absolute Value**- Displays the absolute value of a number
- ABS(4.32) will display as 4.32
- ABS(-4.32) will display as 4.32

**Square Root**- Displays the square root of a number
- SQRT(9) will display as 3

**Exponent**- Displays one number taken to the power of another
- EXP(3,2) will display as 9 (which is 3^2 or 3 to the 2nd power)

**Random Number**- Will display a random number between any two values you specify
- RAND(0,1) will display a random number between 0 and 1

**Log**- Displays the base 10 logarithm of a number
- LOG(100) will display as 2

Let's take a look at an example. If we have the total cost for a trip and the number of people who can go on that trip, but want to see the trip cost per person, we can use a custom math formula.

- 1.Insert a text box
- 2.
- 3.Select New Formula from the popup list
- 4.Click on the pencil icon to open the formula editor
- 5.Click on the Magic Number icon to select Trip Cost
- 6.Enter "/"
- 7.Click on the Magic Number icon to select Group Size
- 8.

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Last modified 2yr ago