CALCULATOR
2×2 Matrix Sum Entry Calculator
2×2 Matrix Sum Entry. Entry: 0=11, 1=12, 2=21, 3=22: Row 1, column 1, Row 1, column 2, Row 2, column 1, Row 2, column 2 only. Example: A: 1 number, B: 2 number, C: 3 number, D: 4 number, E: 5 number, F: 6 number, G: 7 number, H: 8 number, Entry: 0=11, 1=12, 2=21, 3=22: 0 number gives 6 number. Addition only, 2×2 real matrices; no subtraction or variable-size matrix claims. Original useful product
Addition only, 2×2 real matrices; no subtraction or variable-size matrix claims. Original useful product scope; historical catalog title does not grant missing modes or source parity. Derivation: Corresponding entries sum; subtraction mode is deferred explicitly.
Accepted inputs: A: -100 to 100 number; B: -100 to 100 number; C: -100 to 100 number; D: -100 to 100 number; E: -100 to 100 number; F: -100 to 100 number; G: -100 to 100 number; H: -100 to 100 number; Entry: 0=11, 1=12, 2=21, 3=22: choose Row 1, column 1 (0), Row 1, column 2 (1), Row 2, column 1 (2), Row 2, column 2 (3).
How the calculation works
(A+B)ij=Aij+Bij
Worked example
With a 1 number, b 2 number, c 3 number, d 4 number, e 5 number, f 6 number, g 7 number, h 8 number, entry: 0=11, 1=12, 2=21, 3=22 Row 1, column 1, 2×2 matrix sum entry is 6 number.
Assumptions and limits
Addition only, 2×2 real matrices; no subtraction or variable-size matrix claims. Original useful product scope; historical catalog title does not grant missing modes or source parity. Derivation: Corresponding entries sum; subtraction mode is deferred explicitly.