Casio fx 991MS User Guide - Page 20

Scientific Function, Calculations - how to use scientific calculator

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particular variable: 0 A j 1. This operation deletes the data assigned to variable A. • Perform the following key operation when you want to clear the values assigned to all of the variables. A B 1(Mcl) = • Example: 193.2 Ö 23 ҃ 8.4 193.2 Ö 28 ҃ 6.9 193.2 A j 1 \ 23 = p 1 \ 28 = Scientific Function Calculations COMP Use the F key to enter the COMP Mode when you want to perform basic arithmetic calculations. COMP F 1 • Certain types of calculations may take a long time to complete. • Wait for the result to appear on the display before starting the next calculation. • π = 3.14159265359 k Trigonometric/Inverse Trigonometric Functions • To change the default angle unit (degrees, radians, grads), press the F key a number of times until you reach the angle unit setup screen shown below. Deg Rad G r a 1 23 • Press the number key (1, 2, or 3) that corresponds to the angle unit you want to use. (90° = π radians = 100 grads) 2 18

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18
COMP
particular variable:
0
A
j
1
. This operation de-
letes the data assigned to variable A.
• Perform the following key operation when you want to
clear the values assigned to all of the variables.
A
B
1
(Mcl)
=
•
Example:
193.2
´
23
²
8.4
193.2
´
28
²
6.9
193.2
A
j
1
\
23
=
p
1
\
28
=
Scientific Function
Calculations
Use the
F
key to enter the COMP Mode when you
want to perform basic arithmetic calculations.
COMP
.............................................................
F
1
• Certain types of calculations may take a long time to
complete.
•
Wait for the result to appear on the display before start-
ing the next calculation.
•
π
= 3.14159265359
k
Trigonometric/Inverse Trigonometric
Functions
• To change the default angle unit (degrees, radians,
grads), press the
F
key a number of times until you
reach the angle unit setup screen shown below.
1
2
3
Deg Rad
G
ra
•
Press the number key (
1
,
2
, or
3
) that corresponds
to the angle unit you want to use.
(90
°
=
radians = 100 grads)
π
2