Sharp EL9900C EL-9900C - Page 44
Example, When to, leave, out the, Entering a number, with a negative value
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Chapter 3: Basic Calculations - Basic Keyboard | Enters a "×" sign for multiplication. Example • Multiply 12 by 34. 1 2 | 3 4 E = Enters a "÷" sign for division. Example • Divide 54 by 32. 5 4 = 3 2 E When to leave out the "×" sign The multiplication sign can be left out when: a. It is placed in front of an open parenthesis. b. It is followed by a variable or a mathematical constant (π, e, etc.): c. It is followed by a scientific function, such as sin, log, etc.: Entering a number with a negative value _ Sets a negative value. Example • Calculate -12 × 4. _ 1 2 | 4 E Note: Do not use the - key to enter a negative value; use the _ key instead. 34
34
Chapter 3: Basic Calculations — Basic Keyboard
|
Enters a “
×
” sign for multiplication.
Example
•
Multiply 12 by 34.
1 2
|
3 4
E
=
Enters a “
÷
” sign for division.
Example
•
Divide 54 by 32.
5 4
=
3 2
E
The multiplication sign can be left out when:
a.
It is placed in front of an
open parenthesis.
b.
It is followed by a variable or
a mathematical constant (
π
,
e, etc.):
c.
It is followed by a scientific
function, such as sin, log,
etc.:
_
Sets a negative value.
Example
• Calculate
-
12
×
4.
_
1 2
|
4
E
Note:
Do not use the
-
key to enter a negative value; use the
_
key instead.
When to
leave
out the “
×
” sign
Entering a number
with a negative value