Casio FX250HC Support Question
Casio FX250HC Support Question
Find answers below for this question about Casio FX250HC - Basic Scientific Calculator.Need a Casio FX250HC manual? We have 1 online manual for this item!
Question posted by wwwalex21 on May 31st, 2011
How Delete The Memory On It.
delete the memory of the calculator
Current Answers
Related Casio FX250HC Manual Pages
User Manual - Page 4
..., repairs, or battery replacement. When you are being performed correctly.
• Never leave dead batteries in the battery compartment. When exposed to low temperature, the calculator may require more time to display results and may even fail to clean the unit. The user should prepare physical records of data to protect...
User Manual - Page 5
Modes Application
Key
Mode
Operation Name*
Standard deviation calculations Normal calculations
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 on hand for future reference. • ...
User Manual - Page 6
... 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
...• 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
... 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҂(ȕ9))
9 E =
• Example...
User Manual - Page 9
...;(56҂2)ѿ(99Ö4)҃210.75
(53ѿ6)
53 + 6 = Y
M
59.
(23ȕ8)
23 , 8 |
M
15.
(56҂2)
56 - 2 |
M 112.
(99Ȗ4)
99 \ 4 |
M 24.75
(Memory recall)
Z
M 210.75
• Example 2: To calculate the following using memory as shown. Memory Calculations
• Use the COMP mode for memory calculations. • Use Y, |, A { and Z for...
User Manual - Page 10
... a constant: (12҂3)ȕ(45҂3)ѿ(78҂3)҃135.
(12҂3) (45҂3) (78҂3) (Memory recall)
3 - - 12 = Y 45 A { 78 | Z
MK 36.
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...
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...
User Manual - Page 13
...
• Use COMP mode for scientific function calculations. • Some calculations may take a long time to complete. • Wait for result before starting next calculation. • =3.1415926536.
kSexagesimal ↔ Decimal Conversion
• Example: 14°25'36" ↔ 14.42667 14 I 25 I 36 I A O
14.42666667 14°25°...
User Manual - Page 16
... 4: To convert 56,088 meters to clear SCI specification.
F 7 21.234 A b +
1.234 A b = • Press F9 to two places (FIX 2).
kFIX, SCI, NORM, RND, RAN#, ENG Calculations
• Example 1: 1.234ѿ1.234, rounding result to clear FIX specification.
F 7 2
FIX
0.00
1.234 +1.234 =
FIX
2.47
• Example 2: 1.234ѿ1.234, rounding input to...
User Manual - Page 18
... standard deviation.
• If FIX or SCI is on the display, press F9 first. • Data input always starts with Au.
• Example: To calculate nҀ1, n, o, n, ⌺x, and ⌺x2 for the following data : 55, 54, 51, 55, 53, 53, 54, 52. Enter SD Mode. F l A u 55 } 54 } 51 } ...
User Manual - Page 19
SD
427.
SD
22805.
• }} inputs the same data twice (as above . • To delete data you have just input, press A[.
- 17 - To input the data 110 ten times, for example, press 110 -10 }.
• The above results can be ...
User Manual - Page 20
... input.
Correct Actual 51 } 49 }
130 - 120 31 } 30 }
Correction
49 A [ 51 } 120 - 30 A [130 31 }
Technical Information
kKey and Their Functions
• General Arithmetic calculations
18 -
kMaking Corrections During Data Input • Example 1: To change data you have just input.
User Manual - Page 23
... notation. 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 used.
- 21 - Square A K Square root L Tangent h Permutation A m Combination A n
• Statistics (SD Mode) Arithmetic mean A ` Data delete A [ Data input Number of data A r Population standard deviation A p Sample...
User Manual - Page 24
...4. Enter the correct modes to confirm it is currently in this manual show calculation results using the NORM 1 format.
Check the formula you are not what you expect 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...
User Manual - Page 25
.... ("-E-" indicator appears on the display.) d. When a result (whether intermediate or final) or a
total accumulated in memory is performed. ("-E-" indicator appears on the display.) c. When an illegal mathematical operation (such as an attempt to clear only the last calculation performed.
• To change the operator key A w, A s, etc.) you just pressed, simply press the...
User Manual - Page 26
... turn power off. • Power automatically turns off (but data in memory is used . ("- 1-" indicator appears on . • Press i to the interior
of parentheses are used .
Important!
e.
Instead, the display shows all zeros. Incorrect use of batteries can continue with the calculation from the beginning.
• In the case of condition e, you...
User Manual - Page 27
...may not provide full service life.
• All data stored in the calculator when you replace the batteries. To replace the batteries
1. Install two new ... so their positive (ѿ) and negative (Ҁ) ends are for testing only.
Remove the screws that come in memory is lost when you purchase it in place, and then remove the cover. 3. If swallowed, consult with the positive...
User Manual - Page 28
kOrder of Operations and Levels Operations are performed in the following the above input.
- 26 - Functions 2. There are six registers, so calculations up to six levels can be stored. • Each level can contain up to three open parentheses, so parentheses can be nested up to right, ...
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