FR1045875A - Improvements to calculating machines - Google Patents
Improvements to calculating machinesInfo
- Publication number
- FR1045875A FR1045875A FR1045875DA FR1045875A FR 1045875 A FR1045875 A FR 1045875A FR 1045875D A FR1045875D A FR 1045875DA FR 1045875 A FR1045875 A FR 1045875A
- Authority
- FR
- France
- Prior art keywords
- calculating machines
- machines
- calculating
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/32—Arrangements for performing computing operations, e.g. operational amplifiers for solving of equations or inequations; for matrices
- G06G7/38—Arrangements for performing computing operations, e.g. operational amplifiers for solving of equations or inequations; for matrices of differential or integral equations
- G06G7/40—Arrangements for performing computing operations, e.g. operational amplifiers for solving of equations or inequations; for matrices of differential or integral equations of partial differential equations of field or wave equations
- G06G7/46—Arrangements for performing computing operations, e.g. operational amplifiers for solving of equations or inequations; for matrices of differential or integral equations of partial differential equations of field or wave equations using discontinuous medium, e.g. resistance network
Landscapes
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Algebra (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1655050A GB684512A (en) | 1950-07-03 | 1950-07-03 | Improvements relating to calculating apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1045875A true FR1045875A (en) | 1953-12-01 |
Family
ID=10079336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1045875D Expired FR1045875A (en) | 1950-07-03 | 1951-07-02 | Improvements to calculating machines |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1045875A (en) |
GB (1) | GB684512A (en) |
-
1950
- 1950-07-03 GB GB1655050A patent/GB684512A/en not_active Expired
-
1951
- 1951-07-02 FR FR1045875D patent/FR1045875A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB684512A (en) | 1952-12-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1039700A (en) | Improvements to electronic calculating machines | |
FR1043021A (en) | Improvements to grinding machines | |
FR1040702A (en) | Improvements relating to stranding machines | |
FR1053803A (en) | Improvements to calculating machines | |
FR1035587A (en) | Improvements to statistical machines | |
FR1048588A (en) | Improvements to statistical machines | |
FR1053966A (en) | Improvements to calculating machines | |
FR1016815A (en) | Improvements to injection machines | |
FR1041911A (en) | Improvements to grinding machines | |
FR1151451A (en) | Improvements to arithmetic units for number calculating machines | |
FR1016825A (en) | Improvements to grinding machines | |
FR1028104A (en) | Improvements relating to threshing machines | |
FR1032674A (en) | Improvements to calculating machines | |
FR1045875A (en) | Improvements to calculating machines | |
FR1043155A (en) | Improvements to electric calculating machines | |
FR1055897A (en) | Improvements to statistical machines | |
FR1026530A (en) | Improvements to toothbrushes | |
FR60388E (en) | Improvements to stamping machines | |
FR1027108A (en) | Improvements to calculating machines | |
FR1040786A (en) | Improvements to purely digital calculating machines | |
FR1065214A (en) | Calculator | |
FR1047984A (en) | Calculator | |
FR1042789A (en) | Improvements to statistical machines | |
FR1044967A (en) | Improvements to filling machines | |
FR1063867A (en) | Improvements to statistical machines |