Casio 300 PLUS Guia Do Utilizador

20050501

k Equal Symbols and Unequal Symbols (=, 

≠, <, >, <, >)

You can use these symbols to perform a number of different basic calculations.

To add 3 to both sides of

MATH

Cmd

(

X= 3 )+ 3 w

 = 3.

 + 3 = 6

Subtract 2 from both sides

OPTN MATH

Cmd

(

Y 

 5 )- 2 w

of 

 < 5.

 – 2 < 3

• In the “Syntax” explanations of each command under “2-7 Using the Action Menu”, the following

operators are indicated as “Eq/Ineq”: =, 

≠, <, >, <, >. Whether or not the “Eq/Ineq” operators

include the “

≠” operator is specified for each command by a separate note.

• An expression that contains multiple equation or inequality operators cannot be input as a single

expression. For output expressions, an expression can be output with multiple operators only in
the case of inequality operators that are facing in the same direction (example: –1< 

 <1).

Example: solve(

2

 – 1 < 0, 

) w

{–1 < 

 < 1}

k “with” Operator (

 | )

The “with” (I) operator temporarily assigns a value to a variable. You can use the “with”
operator in the following cases.
• To assign the value specified on the right side of | to the variable on the left side of |
• To limit or restrict the range of a variable on the left side of | in accordance with conditions

provided on the right side of

 |

The following is the syntax for the “with” (I) operator.

Exp/Eq/Ineq/List/Mat|Eq/Ineq/List/(and operator)
You can put plural conditions in a list or connected with the “and” operator on the right side.
“

≠” can be used on the left side or the right side of |.

Evaluate 

2

 + 

 + 1  when

OPTN SMBL

Cmd

X{ 2 +X+ 1 UX

 = 3.

13

= 3 w

For 

2

 – 1 = 0, determine

OPTN SMBL

Cmd

[solve] X{ 2 - 1 = 0

the value of 

when 

 > 0.

,

X)UX 

 0 w

{

 = 1}

Determine the value of

OPTN SMBL

Cmd

$X)UX 

 0 w

abs (

) when 

 >0.

2-4-11

Function Calculations