Hp 48G Instrukcja Użytkownika Strona 46
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Oceniono. / 5. Na podstawie oceny klientów
Lesson 12: Understanding Memory
Thus far it. has been convenient to think of the HP 48 as a
calculator—albeit an advanced calculator. However, when considering
its memory, it is better to think of it as a computer.
The basic unit of storage on a desktop computer is the named file. On
the HP 48 the basic unit of storage is the named object, or varuihle.
Unnamed objects can exist on the stack, but, like computer files, must
be named in order to be saved. Envision a variable as a named storage
area containing an olfiect.
Variables, reflecting the objects they contain, vary widely in both
size and type. Like stored computer files, variables are organized into
directories—“file folders”—that make it convenient to find them later.
Example: Determine the amount of memory (in bytes) currently
available to store HP 48 variables.
Variables on the HP 48 are stored in SYSRAM—or on a plug-in card
in the case of the expandable HP 48 models. SYSRAM memory is like
a desktop computer’s Random-Access-Memory (RAM) except that it
is non-volatile—it isn’t erased when the HP 48 is turned off.
The figure below shows how the HP 48 divides up the SYSRAM and
the type of variables (in parentheses) stored in each section:
Partitions move depending on current allocation of memory
System ; Available Memory
Stack I Program | User
Port 0
(system) j I (local) I (global)
(port)
Schematic view of SYSRAM in the HP 48
4-2 Understanding and Using Memory
- Start Guide 1
- Regulatory Information 2
- HP Part No. 00048-90126 3
- Printed in Singapore 3
- Edition 5 3
- Acknowledgements 4
- Edition History 4
- Contents-1 5
- Contents-2 6
- Contents-3 7
- Start Here 1-1 9
- About the Quick Start Guide 10
- Lesson 1: Getting Ready 11
- Setting the Time and Date 12
- Introducing the HP 48 2-1 13
- 2-2 Introducing the HP 48 14
- Envisioning the Stack 15
- 2-4 Introducing the HP 48 16
- Introducing the HP 48 2-5 17
- { HOME > 18
- (ENTER), or 19
- (CANCEL) 19
- (ENTER), or (CANCEL) 19
- Special Characters 20
- Lesson 4: Using Menus 21
- \/x'’ -f 5 22
- MalrirWrHer entry 23
- Application Environments 24
- Solk^e я'-1зс1,., T 25
- Introducing the HP 48 2-13 25
- Using External Programs: (g) 26
- Using Built-In Equations: O 26
- ■iid№giat5M5iatti;ia»«Mi 27
- Introducing the HP 48 2-15 27
- Arithmetic 29
- (ENTER) 1.2 (ENTER) 30
- : .0025 31
- : 350.174049835 31
- 1: 17.2413793103 32
- 350.174049835 32
- \ ^\ 33
- (A) key 34
- Functions 35
- 1666666666? 36
- '13-^6' 36
- 1= 'EXPC-a*x)' 37
- 'l-EKPC-a*x)' 37
- 1: (3,4) 38
- (5.39^158.2) 38
- S) 9 4 (ENTER) 39
- 4 PTC) f^-) 3 39
- Q 2 (o 40
- Converting Units 42
- 1: 3.5_N*P1 43
- V>^mg Pterin-ary 45
- 11 (using fSTO )) 48
- Step 2: Enter the name tl 48
- 1: 1.73205080757 49
- ®(S® MOVE 51
- 52
- 'HP 48G4" 52
- ■"■■CHK 53
- Solving Equations 5-1 55
- BiaiaHTiTiTHHB 56
- 5-2 Solving Equations 56
- EQUftTIDN^^« 57
- Solving Equations 5-3 57
- Discontinuity 58
- Solving Equations 5-5 59
- A: gilBi№ i 60
- 1: 'TH=Q©/fl+TL' 61
- 5-8 Solving Equations 62
- [112-53-6] 63
- Solving Equations 5-9 63
- I'- Roots' 64
- Equations 65
- SOLVE SVSTEM 66
- Plotting Egyatioii-s and 67
- CD iS^ (ENTER) 68
- Function 69
- X H-VIEN: “6.5 69
- TVPE; Function [ggBB 69
- 0= Df It Hi: Df It 70
- 10 V-TICK: 10 ¿PIKELS 70
- '2*SIN<„ 71
- CHOnSE TYPE gp PLDT 72
- Dimensions 73
- TVPE: Nireframe Rad 74
- 74
- -2 2E: 1 75
- HP 48 Plot Types 76
- IlilLiliilliiUi,. 77
- T . Ml.- 77
- ‘^lll 1' ^ I'l ‘ 77
- HP 48 Plot Types (continued) 78
- (F(u,f) = 78
- U, v)j + c( ti, tt)k) 78
- ClJ ly C±D ©X O 4 79
- ©X (ZD 2 © © ©X Q 4 79
- R 0 0" 80
- ,,,A' 80
- F C H S L. 0 P E 81
- 3= Slope: .072 82
- £: TanLine: 'Y=-l.i01„ 82
- C. 159483706477,-3 82
- X-values you designate 83
- Symbolic 87
- Lesson 30: Finding Integrals 88
- IBQZHIBiM 89
- '^'Im 91
- ■ ■ ■^-2711 91
- TYPE: Sample 92
- 93
- I FIT DfiTfli 93
- Correlation: .987Z„ 94
- 1: Couariance: 94
- 0 2 ® Y (zD 2 95
- £: Tolerance: 96
- 1: Solution: 96
- . 1£3076920%9 96
- (EEX) 7 fENTER) 97
- (ENTER) 8 (ENTER) (Q 97
- (ENTER) 1 (ENTER) 97
- 2: [[ 1 .5 1 ] [ -.2. 98
- 1: [ -3 5 -3 ] 98
- Special Features 8-1 99
- 2. Receiver 100
- ■3. Sender 100
- Equation Library 101
- KiïïwnBtauoaBjHiiSÉiaiiMifl 102
- u0= £5.44-pi--'5 103
- { vq ) , and then 104
- 3. Pms^O (NXT)HTTFiC 105
- To use a library, it must be: 106
- If Things Go Wrong 107
- (or any other key) 107
- Lesson 39: Troubleshooting 108
- ■ Reset hole 109
- HP 48G Senes User’s Guide 110
- Contacting Hewlett-Packard 115
- Contents 116
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