IT1078154B - Calcolatore numerico elettronico - Google Patents

Calcolatore numerico elettronico

Info

Publication number
IT1078154B
IT1078154B IT48539/77A IT4853977A IT1078154B IT 1078154 B IT1078154 B IT 1078154B IT 48539/77 A IT48539/77 A IT 48539/77A IT 4853977 A IT4853977 A IT 4853977A IT 1078154 B IT1078154 B IT 1078154B
Authority
IT
Italy
Prior art keywords
electronic numerical
numerical calculator
calculator
electronic
orders
Prior art date
Application number
IT48539/77A
Other languages
English (en)
Inventor
Harigaya Isao
Original Assignee
Canon Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP3048876A external-priority patent/JPS52113641A/ja
Priority claimed from JP3186276A external-priority patent/JPS52115136A/ja
Priority claimed from JP51047511A external-priority patent/JPS5916306B2/ja
Application filed by Canon Kk filed Critical Canon Kk
Application granted granted Critical
Publication of IT1078154B publication Critical patent/IT1078154B/it

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • G06F15/025—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators adapted to a specific application
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/49—Computations with a radix, other than binary, 8, 16 or decimal, e.g. ternary, negative or imaginary radices, mixed radix non-linear PCM
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/12—Accounting

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Computer Hardware Design (AREA)
  • Accounting & Taxation (AREA)
  • Nonlinear Science (AREA)
  • Development Economics (AREA)
  • Economics (AREA)
  • Marketing (AREA)
  • Strategic Management (AREA)
  • Technology Law (AREA)
  • General Business, Economics & Management (AREA)
  • Calculators And Similar Devices (AREA)
  • Input From Keyboards Or The Like (AREA)
IT48539/77A 1976-03-19 1977-03-18 Calcolatore numerico elettronico IT1078154B (it)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3048876A JPS52113641A (en) 1976-03-19 1976-03-19 Operation processor
JP3186276A JPS52115136A (en) 1976-03-23 1976-03-23 Electronic computer
JP51047511A JPS5916306B2 (ja) 1976-04-26 1976-04-26 計算機

Publications (1)

Publication Number Publication Date
IT1078154B true IT1078154B (it) 1985-05-08

Family

ID=27286977

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48539/77A IT1078154B (it) 1976-03-19 1977-03-18 Calcolatore numerico elettronico

Country Status (3)

Country Link
US (2) US4149261A (it)
IT (1) IT1078154B (it)
SE (1) SE435218B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2041597B (en) 1978-12-21 1982-09-15 Casio Computer Co Ltd Date data input/output control for electronic devices
FR2455315B1 (fr) * 1979-04-23 1986-10-24 Anvar Procede pour fournir un resultat de calcul numerique avec le nombre de chiffres significatifs exacts dans ce resultat et dispositif de calcul numerique mettant en oeuvre ce procede
JPS56135236A (en) * 1980-03-24 1981-10-22 Casio Comput Co Ltd Numeric data displaying system
JPS56168259A (en) * 1980-05-30 1981-12-24 Canon Inc Electronic apparatus
US4340940A (en) * 1980-08-26 1982-07-20 Rca Corporation Hardware reduction by truncation of selected number of most significant bits for digital video system using subsampling and adaptive reconstruction
US4475165A (en) * 1981-07-06 1984-10-02 Texas Instruments Incorporated Method of data entry and execution of a two variable calculator function in the same manner and entry format as a single variable function
DE3144015A1 (de) * 1981-11-05 1983-05-26 Ulrich Prof. Dr. 7500 Karlsruhe Kulisch "schaltungsanordnung und verfahren zur bildung von skalarprodukten und summen von gleitkommazahlen mit maximaler genauigkeit"
JP3199371B2 (ja) * 1990-07-30 2001-08-20 松下電器産業株式会社 丸め装置
US5943297A (en) * 1994-08-19 1999-08-24 Hewlett-Packard Co. Calendar clock circuit for computer workstations
US5563818A (en) * 1994-12-12 1996-10-08 International Business Machines Corporation Method and system for performing floating-point division using selected approximation values
US5745796A (en) * 1995-04-07 1998-04-28 Adventures In Ancestry, Inc. Method for compacting and storing date information by converting alphanumeric data into base eleven numbers which consists of numbers and characters representative of unknown digits
US5763860A (en) * 1996-12-10 1998-06-09 Denis; Diane T. Gestational calculator
JP3789245B2 (ja) * 1999-01-28 2006-06-21 株式会社データアクション 端数処理装置及びその方法並びに該端数処理を実行するプログラムを記録した記録媒体
US8140605B2 (en) * 2007-05-29 2012-03-20 Patton Jr Roy Chilson Electronic date calculator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388385A (en) * 1966-05-19 1968-06-11 Hewlett Packard Co Nondestructive round-off display circuit
US3594565A (en) * 1968-05-31 1971-07-20 Singer Co Round off apparatus for electronic calculators
US3569685A (en) * 1968-07-11 1971-03-09 Fairchild Camera Instr Co Precision controlled arithmetic processing system
US3813533A (en) * 1972-06-02 1974-05-28 Garrett Comtronics Corp Clock calculator
US3863060A (en) * 1972-10-30 1975-01-28 Hewlett Packard Co General purpose calculator with capability for performing interdisciplinary business calculations
JPS522356A (en) * 1975-06-24 1977-01-10 Casio Comput Co Ltd Electronic desk calculator
US4034197A (en) * 1976-06-30 1977-07-05 Bell Telephone Laboratories, Incorporated Digital filter circuit

Also Published As

Publication number Publication date
US4276606A (en) 1981-06-30
SE7703055L (sv) 1977-09-20
SE435218B (sv) 1984-09-10
US4149261A (en) 1979-04-10

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960315