Sharp EL-5230 User Manual Page 29
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Using Memories
The calculator uses global variable memories (A–Z and θ), local variable
memories (maximum of nine variables per equation), and a last answer
memory used when solving equations.
Using alphabetic characters
You can enter an alphabetic character (written
in blue) when ALPHA is displayed at the top of
the display. To enter this mode, press ;.
To enter more than one alphabetic character,
press @ a to apply the alphabet-lock
mode. Press ; to escape from this mode.
Using global variables
You can assign values (numbers) to global variables by pressing x then
A–Z and θ.
Example 1
Store 6 in global variable A.
1. Press j 6 x A.
• There is no need to press ; because
ALPHA is selected automatically when
you press x.
100000÷3= j @ J 1 3
[Floating point (NORM1)]
100000 z 3 e
→[FIXed decimal point
and TAB set to 2]
→[SCIentific notation
and SIG set to 3 ]
→[ENGineering notation
and TAB set to 2]
@ J 1 2 2
→[Floating point (NORM1)]
@ J 1 3
3÷1000=
[Floating point (NORM1)]
j 3 z 1000 e
→[Floating point (NORM2)]
→[Floating point (NORM1)]
@ J 1 1 3
@ J 1 0 2
Example
Key operations
Result
@ J 1 4
@ J 1 3
33333.33333
33333.33333
0.003
0.003
33333.33
3.33˚10
04
33.33˚10
03
3.˚10
-03
Chapter 2: General Information
NORMAL MODE
0.
0.
6ÒA
6.
- SHARP CORPORATION 1
- SHARP EL-5230/5250 3
- Contents 4
- Introduction 9
- Operational Notes 10
- Key Notation in This Manual 11
- Before You Get Started 13
- The Hard Case 14
- Calculator layout 15
- Exponent 16
- Mantissa 16
- Dot matrix 16
- Operating Modes 17
- A Quick Tour 18
- 8Œ©‰3-7˚–10.5= 19
- 110.4504172 19
- 8Œ©‰3-7˚–10.5 19
- NORMAL MODE 20
- H=z 0 21
- R=z 8 21
- 1ı3πRŒH= 22
- 678.5840132 22
- 670.2064328 22
- H= 10.125 24
- R¬ 678.5840132 24
- L¬ 678.5840132 24
- General Information 25
- Cursor keys 26
- Delete key 27
- Multi-entry recall function 27
- The SET UP menu 28
- Using Memories 29
- ƒz ‹ fl 30
- ⁄ › ‡ 30
- ¤ fi ° 30
- 1ıA¡-1000A= 31
- 74000 31
- 141.3716694 32
- Using memory in each mode 33
- Resetting the calculator 34
- Scientific Calculations 35
- Functions 36
- 20.08553692 37
- Math menu Functions 38
- 86400 39
- 0∂0∂1500Ωmin 39
- 25 39
- Differential function 40
- Integral function 41
- Random Function 43
- Example Key operations Result 44
- Fraction Calculations 45
- Operations (N-base) 46
- 12∂34∂56.78∂ 48
- Coordinate Conversions 49
- No. Constant Symbol Unit 50
- 100m × 10k = 52
- 100 @ j 6 k 52
- 10 @ j 5 e 52
- Modify Function 53
- Solver Function 54
- D= 20 55
- R¬ 50 55
- L¬ 50 55
- Important notes 56
- Simulation Calculation (ALGB) 57
- BCsinA©2_ 58
- BCsinA©2 58
- B=z 0 58
- SAVE:RING_ 60
- QUIT¬[ENTER] 61
- TITLE:RING 61
- DELETE¬[DEL] 61
- Statistical Calculations 63
- Linear regression calculation 64
- Data Entry and Correction 65
- X=z 4 66
- Y= 3 66
- › 3 66
- DATA SET= 1 69
- DATA SET= 2 69
- DATA SET= 3 69
- DATA SET= 5 69
- Stat 2 [QUAD] 70
- Equation Solvers 71
- D= –3 72
- X⁄ 5 73
- X¤–6.333333333 73
- X⁄–1.233600307 74
- X¤ 0.216800153 74
- +1.043018296i 74
- Complex Number 75
- Calculations 75
- COMPLEX MODE 76
- 76
- Programming 77
- Creating a NEW Program 78
- SLOPE :NORMAL 79
- 6 80
- Programming Commands 81
- Chapter 7: Programming 82
- Flow control 83
- Equalities and inequalities 84
- Statistical Commands 85
- Editing a Program 86
- Deleting Programs 88
- Application Examples 89
- The Heron Formula 91
- 349.944192 92
- NBASE :NBASE 93
- PROGRAM? 93
- * Calculate intermediate 97
- *Perform equation 1 98
- * Perform equation 2 98
- * Perform equation 3 98
- DECAY :NORMAL 99
- Running the program 100
- (1)DELTA TO Y 103
- (2)Y TO DELTA 103
- Obtaining tensions of strings 104
- 23.761 105
- 21.966 105
- 0.000 112
- TŒ=(4πŒ)©(GM)˚ 112
- Example 1 114
- Example 2 114
- DATA SET= 4 115
- 13254.15 115
- The state lottery 116
- Appendix 117
- Cautions 118
- Replacement procedure 118
- Automatic power off function 119
- The OPTION menu 120
- <<DELETE>> 121
- Error Messages 122
- - ERROR 02 123
- CALCULATION 123
- RANGE:a<b 124
- Solving y = sin x for y = 0 125
- Technical Data 126
- Function Dynamic range 127
- * n, r: integer 128
- Specifications 130
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