# 1 minute overview

Get a glance of the features in this quick video.

# Size it.

It’s easy to miss, you can resize Magic Number to your heart’s content.

To save space, you can go buttonless.

To switch back to the default, click .

# Editing

Just click and type over it.

You can navigate with left or right arrow:  ,

You can insert with alt-left or alt-right:   ,

Of course there are many more editing tricks.

‘+’ is the most common operation.
Yet most of us have this key:

Magically, when you press it twice, you get ‘+’.

+

## Changing it for good

Go to menu  Magic Number ▸ Preferences

# Shortcuts

From above, you can see

X Multiply

Visually letter ‘X’ is similar to the multiplication sign.
Many shortcuts are based on visual clues.

You can also learn a shortcut from the button’s tooltip.

Here is the full list of shortcuts.

# Do it with one finger

Traditionally we use shift (⇧) to access secondary functions.

For example:

S sin

S sin–1

Holding ⇧ while pressing S is tedious.

SS sin–1

This is the Double Key technique.

# History

You can re-use your past calculation by double-clicking.

Select something to see its summary.

# No need for M+, MR, MC

You get something better.

• First, the result of your calculation is automatically saved.
To use it again, click or press R.
• Magic Number gives multiple memories.
They are more like variables. To set m to 42, enter ‘m = 42’.
You can use letters a, b, k, m, n.
• Lastly if you want to use M+ to add a list of numbers,
the List feature is for you.

# List – A mini spreadsheet

Get the sum, tax, and statistics for a list of numbers.

### Quick tutorial:

1. Open the List drawer (⌘4).
2. Enter a number and press to put it in the drawer.
3. Pick a function.

Click the below image for a demo.

# The Unknown

Sometimes you are too tired to think.
For example:

Something ÷ 17 = 19

Something is the unknown. Similar to ‘x’ in elementary algebra.

Enter:

÷ 17 = 19

You get:

Here is an example involving %:

# Extra Functions

You find more functions under F1 or F2.

When you click F1 for example, you get a list of extra functions to choose from.

## Useful shortcuts

F  –  F1

G  –  F2

⇧⌘ F  –  Show the list of extra functions