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GNU Emacs Calc 2.02 Manual

3.7.17 Matrix Tutorial Exercise 2

x + a y = 6 x + b y = 10

Just enter the righthand side vector, then divide by the lefthand side matrix as usual.

1: [6, 10] 2: [6, 10] 1: [6 - 4 a / (b - a), 4 / (b - a) ] . 1: [ [ 1, a ] . [ 1, b ] ] . ' [6 10] RET ' [1 a; 1 b] RET /

This can be made more readable using d B to enable "big" display mode:

4 a 4 1: [6 - -----, -----] b - a b - a

Type d N to return to "normal" display mode afterwards.