The memory feature lets you store a number. A number you want to use later.

To set the memory to 2, we make  m = 2.

Enter:

m = 2

You can set m to be the result of an expression.

For example:

m = 1.2 ÷ 3.4

If you like, you can do it like this:

1.2 ÷ 3.4  = m

Let’s use m in an expression:

100 × m

Sometimes you forget the value of m, to find out,
enter m and press return.

It’s no surprise that memory is like a variable.
What’s special about it?

From the above example, with m = 0.3529411764

100 × m = 35.29411764

Let’s look at our History:

Let’s set  m = 2.

Notice the result is updated, instantly.

This technique is useful for repeating the same calculation with different numbers.

If you have configured the key  =  as+
in Preferences > Shortcuts:

You may be wondering how to get  =  via the keyboard.

You can either:

• Press shift-equal:  ⇧=
• Or press equal twice:   ==

Actually ‘m’ is just one of the memories;
you can use a, b, m, or n, anytime and anywhere.

If that’s not enough, you also have the secondary
a2, b2, m2, and n2. Here’s how to access them.

Via the mouse:

Hold down the memory button until its menu appears.
(You can also right-click or control-click.)

Via the keyboard:

Press M for m. For m2 press M twice.

M → m

MM → m2

In other words, you press same key twice for the secondary memory:

A → a

AA → a2

And to set b2 = 20, you enter:

bb= 20

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Making it Memorable

You may prefer longer or more meaningful names; go to Options from the Memory Menu: