The infixed operators + and .+ (resp. - and .-) are used for the addition (resp. subtraction) of two matrices.
Examples.
⎡ ⎢ ⎣ |
| ⎤ ⎥ ⎦ |
⎡ ⎢ ⎣ |
| ⎤ ⎥ ⎦ |
Remark.
+ and - can be used as prefixed operators; in this
case they must be quoted, ’+’ and ’-’
(see Section 6.42.3 and Section 6.42.4).
Examples.
⎡ ⎢ ⎣ |
| ⎤ ⎥ ⎦ |
⎡ ⎢ ⎣ |
| ⎤ ⎥ ⎦ |