DoYourMath.com Algebrator Manual For Your Algebra Problem Solver | Page 12

8

2.1.1

Algebrator Manual

Keyboard characters
Keyboard characters and their meaning
Most keyboard characters used during expression entry are self-explanatory:

a...z and
A...Z

: characters are used as variable names. Note that in order to enter
the natural logarithm base

e and the complex unit i , you need to

use the special character toolbar.
0...9

: standard digit meaning.

.

: decimal point.

+, -, *, /, ^: these are common operations. Note that ‘/’ is a fraction operator.

If you need the division operator

you will need to use the

special character toolbar.
Also note that the multiplication operator ‘*’ will sometimes be

displayed as a dot
displayed at all

and at other times it will not be
. This is a matter of formatting; even when

there is no dot, the multiplication operation is implied.
=, < , >

: equality and inequality symbols (which are also available in the

special character toolbar:

and

(less than or equal to) and

).

(greater than or equal to)

are available only on the special character toolbar.
{, [, (, ), ],: standard parentheses meaning. Note there is no difference in
}

function between the different sets of parentheses

they are

made available only to better comply with the formatting in your
book. However, once you use a particular open parentheses (i.e.
‘[‘) you have to close the expression with the same type of
parentheses (i.e. ‘]’). In fact, if you type any of these left
parentheses,

Algebrator

will

add

the

corresponding

right

parenthesis for you.

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