JPS5720863A - Arithmetic method of digital differential analytical engine - Google Patents

Arithmetic method of digital differential analytical engine

Info

Publication number
JPS5720863A
JPS5720863A JP9576680A JP9576680A JPS5720863A JP S5720863 A JPS5720863 A JP S5720863A JP 9576680 A JP9576680 A JP 9576680A JP 9576680 A JP9576680 A JP 9576680A JP S5720863 A JPS5720863 A JP S5720863A
Authority
JP
Japan
Prior art keywords
memory
stores
equation
transmits
dda
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP9576680A
Other languages
Japanese (ja)
Other versions
JPS6044697B2 (en
Inventor
Shigeru Yabuuchi
Takeshi Endo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Denshi KK
Hitachi Ltd
Original Assignee
Hitachi Denshi KK
Hitachi Ltd
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
Application filed by Hitachi Denshi KK, Hitachi Ltd filed Critical Hitachi Denshi KK
Priority to JP55095766A priority Critical patent/JPS6044697B2/en
Publication of JPS5720863A publication Critical patent/JPS5720863A/en
Publication of JPS6044697B2 publication Critical patent/JPS6044697B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/11—Complex mathematical operations for solving equations, e.g. nonlinear equations, general mathematical optimization problems
    • G06F17/13—Differential equations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Operations Research (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Complex Calculations (AREA)

Abstract

PURPOSE:To redouble the number of inputs per operation, by controlling the timing of production according to the number of inputs for the reset signal of a register that stores the total sum of the microincrements of the input signals of >=2 interlations. CONSTITUTION:A computer 201 transmits the initial value to a Y memory 203 which stores the result of operation of equation (1), an R memory 204 which stores the result of operation of equation (2) and an increment memory 205 which stores an overflow component DELTAZ1 of the operation of equation (2) respectively via a common bus 202 plus multiplexer 2021, 2022 and 2023, and at the same time transmits an arithmetic control instruction of DDA to a control memory 206. The computer 201 also transmits the desired value of a program counter 207 that designates the address of the memory 206 and furthermore starts and stops a controller 208 which produces a series of timing signals necessary for execution of an operation of DDA.
JP55095766A 1980-07-15 1980-07-15 Calculation method of digital differential analyzer Expired JPS6044697B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55095766A JPS6044697B2 (en) 1980-07-15 1980-07-15 Calculation method of digital differential analyzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55095766A JPS6044697B2 (en) 1980-07-15 1980-07-15 Calculation method of digital differential analyzer

Publications (2)

Publication Number Publication Date
JPS5720863A true JPS5720863A (en) 1982-02-03
JPS6044697B2 JPS6044697B2 (en) 1985-10-04

Family

ID=14146602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55095766A Expired JPS6044697B2 (en) 1980-07-15 1980-07-15 Calculation method of digital differential analyzer

Country Status (1)

Country Link
JP (1) JPS6044697B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102978A (en) * 1983-11-11 1985-06-07 Nippon Light Metal Co Ltd Blank member having hydrophilic film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102978A (en) * 1983-11-11 1985-06-07 Nippon Light Metal Co Ltd Blank member having hydrophilic film
JPH0223229B2 (en) * 1983-11-11 1990-05-23 Nippon Light Metal Co

Also Published As

Publication number Publication date
JPS6044697B2 (en) 1985-10-04

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