Citizen SR270X Instruction Manual Page 8
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File name : HDB0R100721_English_text_100426.doc
version : 10/04/26
Memory calculation
Memory variable
The calculator has seven memory variables for repeated use -- A, B,
C, D, M, X, Y. You can store a real number in any of the seven
memory variables. See Example 5.
• [ 2nd ] [ STO ] + [ A ] ~ [ D ], [ M ], [ X ] ~ [ Y ] lets you store values
to variables.
• [ RCL ] + [ A ] ~ [ D ], [ M ], [ X ] ~ [ Y ] recalls the value of the
variable.
• [ 0 ] [ 2nd ] [ STO ] + [ A ] ~ [ D ], [ M ], [ X ] ~ [ Y ] clears the
content to a specified memory variable.
• [ ALPHA ] + " memory variable " lets you insert the applicable
variables in a calculation.
• [ 2nd ] [ CLR ] [ 2 ] [ = ] clears all variables.
Running memory
You should keep the following rules in mind when using running
memory. See Example 6.
• Press [ M+ ] to add a result to running memory and the " M "
indicator appears when a number is stored in the memory. Press
[ RCL ] [ M ] to recall the content of running memory.
• Recalling from running memory by pressing [ RCL ] [ M ] key does
not affect its contents .
• Running memory is not available when you are in statistics mode.
• The memory variable M and running memory utilize the same
memory area.
• In order to replace the content of the memory with the displayed
number, please press [ 2nd ] [ STO ] [ M ] key.
• To clear the content of running memory, you can press [ 0 ] [ 2nd ]
[ STO ] [ M ] in sequence.
(Note) : Besides pressing [ 2nd ] [ STO ] [ M ] key to store a value,
you can also assign values to memory variable M by
[ M+ ]. However, when [ 2nd ] [ STO ] [ M ] is used,
previous memory contents stored in variable M are
cleared and replaced with the newly assigned value.
When [ M+ ] is used, values is added to present sum in
memory.
Order of operations
Each calculation is performed from left to right and in the following
order of precedence:
1) Expression inside parentheses.
2) Functions with parentheses:
PR, R P
sin, cos, tan, sin
–1
, cos
–1
, tan
–1
, sinh, cosh, tanh, sinh
–1
,
cosh
–1
, tanh
–1
,
log, ln,
√
,
3
, 10
X
, e
X
, Abs, RND
- Scientific Calculator 1
- General Guide 4
- Before Starting Calculation 5
- Using Math Mode 6
- Replay function 7
- Memory calculation 8
- Order of operations 8
- Accuracy and Capacity 9
- Error conditions 10
- Basic Calculations 11
- Percentage calculation 12
- Display notations 12
- Answer Function 12
- Fraction calculation 13
- Angle unit conversions 13
- Statistical Calculations 15
- ) only : 17
- Function Table 18
- Guía General 21
- Ajuste del contraste 22
- Lectura de la pantalla 22
- Antes de comenzar el cálculo 23
- Uso del modo matemáticas 24
- Función repetición 25
- Memoria de cálculo 25
- Orden de las operaciones 26
- Precisión y capacidad 26
- Condiciones de error 29
- Cálculos básicos 30
- Función de resultados 31
- Cálculo de fracciones 31
- Transformación Sexagesimal 32
- Decimal 32
- Cálculos estadísticos 34
- Para ver o cambiar datos 36
- Tabla de Función 37
- Guia Geral 40
- Ajuste de contraste 41
- Leitura do visor 41
- Antes de Iniciar o Cálculo 42
- Usando o Modo Matemático 43
- Função de repetição 44
- Cálculo da Memória 44
- Ordem de operações 45
- Precisão e Capacidade 45
- Condições de erro 47
- Cálculos Básicos 48
- Função de Resposta 49
- Cálculo de Fração 49
- Cálculos Estatísticos 52
- Para ver ou mudar dados 54
- Tabela de Função 55
- Allgemeine Anleitung 58
- Kontrasteinstellung 59
- Display-Anzeige 59
- Vor dem Rechnen 60
- Wiederholfunktion 62
- Speicherkalkulationen 62
- Reihenfolge der Operationen 63
- Genauigkeit und Kapazität 63
- Fehlerkonditionen 65
- Grundberechnungen 66
- Displaynotationen 67
- Antwortfunktion 67
- Bruchrechnungen 68
- Winkeleinheitumwandlung 68
- Sexagesimal 68
- Dezimal-Umwandlung 68
- Koordinatentransformation 69
- Wahrsscheinlichkeit 69
- Statistische Kalkulationen 70
- Funktionstabelle 73
- Guide général 76
- Lecture de l’affichage 77
- Utilisation du mode Math 79
- Fonction Refaire 80
- Calculs de Mémoire 80
- Ordre des opérations 81
- Précision et capacité 81
- Conditions d’erreur 83
- Calculs Basiques 84
- Fonction réponse 85
- Calculs de fractions 85
- Conversions d’unité d’angle 86
- Transformation Sexagésimale 86
- Décimale 86
- Transformation de coordonnées 87
- Probabilités 87
- Calculs statistiques 88
- ) uniquement : 90
- Fonction de tableau 91
- Guida Generale 94
- Regolazione del contrasto 95
- Prima di Avviare il Calcolo 96
- Funzione di riproduzione 98
- Calcolo della memoria 98
- Ordine delle operazioni 99
- Accuratezza e Capacità 99
- Condizioni di errore 101
- Calcoli di base 102
- Funzione di Risposta 103
- Il calcolo della frazione 103
- Calcoli Statistici 106
- It – 16 107
- It – 17 108
- Tabella della Funzione 109
- Algemene inleiding 112
- Het contrast bijregelen 113
- Het beeldscherm 113
- Foutieve invoer weergeven 116
- De herhaalfunctie 116
- Volgorde van de bewerkingen 117
- Nauwkeurigheid en capaciteit 117
- Foutmeldingen 119
- Basisbewerkingen 120
- Weergavenotaties 121
- Antwoordfunctie 121
- Bewerkingen met breuken 122
- Hoekconversies 122
- Sexagesimale 122
- decimale transformatie 122
- Coördinaattransformatie 123
- Waarschijnlijkheid 123
- Statistische bewerkingen 124
- Functietabel 127
- SIZE:140x74mm 129
- PARTS NO. HDB0R100721 129
- (SR100) 129
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