Next: Matrix Exponentiation Operator **, Previous: Elementwise Binary Operators, Up: Matrix Expressions [Contents][Index]
If A is an m×n matrix and B is
an n×p matrix, then A*B is the
m×p matrix multiplication product C.
PSPP reports an error if the number of columns in A differs
from the number of rows in B.
The * operator performs elementwise multiplication (see above)
if one of its operands is a scalar.
No built-in operator yields the inverse of matrix multiplication.
Instead, multiply by the result of INV or GINV.
Some examples:
| {1, 2, 3} * {4; 5; 6} | ⇒ | 32 |
| {4; 5; 6} * {1, 2, 3} | ⇒ | {4, 8, 12; 5, 10, 15; 6, 12, 18} |