Casio FX250HC - Basic Scientific Calculator Support and Manuals
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User Manual - Page 5
...
Fl F0
SD COMP
Calculations using degrees Calculations using radians
F4
DEG
F5
RAD
Calculations using grads
F6
GRA
Number of decimal place specification
F7
FIX
Number of the manufacturer.
• Keep this manual may be reproduced in any form without the express written consent of significant digit specification
F8
SCI
Cancels FIX and SCI settings
F9 NORM
* Display indicators...
User Manual - Page 6
... combination
with the COMP and SD modes. • F9does not exit SD mode. • F0exits SD mode. • F0does not clear SCI or FIX specifications. • Always press t before entering DEG, RAD, and GRA
modes. • Remember to always set the operating mode and angular
unit (DEG, RAD, GRA) before starting your calculation.
- 4 -
User Manual - Page 7
O 5+ 4PP =
122.
• You can skip all P operations before the = key.
- 5 - Basic Calculations
• Use the COMP mode for basic calculations.
• Example 1: 23ѿ4.5Ҁ53 23 + 4.5 , 53 =
-25.5
• Example 2: 56҂(Ҁ12)Ö(Ҁ2.5) 56 -12 E \ 2.5 E =
268.8
• Example 3: 2Ö3҂(1҂...
User Manual - Page 8
... +, ,, -,or \ twice after inputting a number to make that number a constant.
• "K" is on the display while a constant is being used. • Use the COMP mode for constant calculations.
• Example 1: 2.3ѿ3, then 2.3ѿ6
(2.3ѿ3)
2.3 + + 3 =
K 5.3
(2.3ѿ6)
6 =
K 8.3
• Example 2: 12҂2.3, then 12҂(ȕ9)
(12҂2.3)
12 - - 2.3 =
(12...
User Manual - Page 10
MK 135. Fraction Calculations
• Use COMP mode for fraction calculations.
• Total number of digits (including division marks) cannot
exceed 10.
• Example 1:
2 3
ѿ
4 5
҃1
7 15
2 C 3 + 4 C 5 =
1 7 15.
• Example 2:
3
1 4
ѿ1
2 3
҃
4
11 12
3 C 1 C 4 +
1 C 2 C 3 =
4 11 12.
&#...
User Manual - Page 11
•
Example 4:
1 2
ѿ1.6҃2.1
1 C 2 + 1.6 =
2.1
Fraction/decimal calculation result is always decimal.
• Example 5:
1 2
↔ 0.5 (Fraction ↔ Decimal)
1 C 2 =
C
C
1 2. 0.5
1 2.
•
Example 6:
1
2 3
↔
5 3
1 C 2 C 3
A B
A B
1 2 3. 5 3.
1 2 3.
- 9 -
User Manual - Page 12
... \ 880 A v
75.
• Example 3: To add 15% onto 2500. 2500 - 15 A v +
2875.
• Example 4: To discount 3500 by 25%. 3500 - 25 A v ,
2625.
• Example 5: To calculate the following, using a constant.
12% of 1200 = 144 18% of 1200 = 216 23% of 1200 = 276
(12%) (18%) (23%)
1200 - - 12 A v 18 A v 23 A v
K 144. K 276.
- 10 -
User Manual - Page 13
...)
63 I 52 I 41 I W
DEG
0.440283084
• Example 3: tan (ȕ35gra)(GRA mode)
35 E h
GRA
-0.612800788
• Example 4: cos-1 ( 2 rad) (RAD mode)
2
2 L \ 2 = A V
RAD
0.785398163
- 11 - Scientific Function Calculations
• Use COMP mode for scientific function calculations. • Some calculations may take a long time to complete. • Wait for result before starting next...
User Manual - Page 23
Larger values are automatically displayed using exponential notation. Square A K Square root L Tangent h Permutation A m Combination A n
• Statistics (SD Mode) Arithmetic mean A ` Data delete A ...you can display up to 10 digits. In the case of values A o
kExponential Display Formats This calculator can select between two formats that determine at what point exponential notation is...
User Manual - Page 24
... or if an error
occurs, perform the following calculation.
1 \ 200 =
5. -03 NORM 1 format
0.005
NORM 2 format
• All of which format is
correct.
5. If calculation results are working with more than nine decimal places. F4 (DEG mode)
3. Enter the correct modes to confirm it is currently in this manual show calculation results using the NORM 1 format...
User Manual - Page 25
...calculations are performed using a value that exceeds the input range. ("-E-" indicator appears on the display.) b. a. In this case, the operator of the last key you press is used,... or Error Check
The following conditions make a mistake when inputting a value (but the operation retains the order of precedence of calculations, press k while an intermediate result is displayed to calculate o ...
User Manual - Page 26
...to burst or leak,
possible damaging the calculator.
• Be sure to replace the batteries at least once every two
years, regardless of how much the calculator is used . ("- 1-" indicator appears on .... use of batteries can continue with the calculation from the beginning.
• In the case of the above conditions, press t and perform the calculation from that point.
• No error ...
User Manual - Page 27
...service life.
• All data stored in place, and then remove the cover. 3. To replace the batteries
1. Install two new batteries with old ones. • Never try to charge batteries, take them apart, or allow
them to become shorted. Be sure to write down important data before replacing... testing only. Replace the back cover and secure it in the calculator when you replace the batteries. ...
User Manual - Page 28
...are performed first. • Registers L1 through L6 store operations. There are six registers, so calculations up to six levels can be stored. • Each level can contain up to three open ... are nested, the operaitons enclosed in the innermost set of parentheses are performed from
left to 18 times.
• Example: The following operation uses 4 levels and 5 nested parentheses. 2 -OOO...
User Manual - Page 29
...(( 5 ѿ
L2
4 ҂
L3
((( 3 ѿ
L4
2 ҂
L 5
L6
kFormulas, Ranges, and Conventions
The following are the formulas, ranges, and conventions that are applied to various calculations that can be performed using this calculator. Coordinate Transformation
• With polar coordinates, θ can be calculated within a range of -180°θ ͨ180°. The...
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