mx {calculus} | R Documentation |
Numerical and Symbolic Matrix Product
Description
Multiplies two numeric
or character
matrices, if they are conformable. If one argument is a vector, it will be promoted to either a row or column matrix to make the two arguments conformable. If both are vectors of the same length, it will return the inner product (as a matrix
).
Usage
mx(x, y)
x %mx% y
Arguments
x |
|
y |
|
Value
matrix
.
Functions
-
x %mx% y
: binary operator.
References
Guidotti E (2022). "calculus: High-Dimensional Numerical and Symbolic Calculus in R." Journal of Statistical Software, 104(5), 1-37. doi:10.18637/jss.v104.i05
See Also
Other matrix algebra:
mxdet()
,
mxinv()
,
mxtr()
Examples
### numeric inner product
x <- 1:4
mx(x, x)
### symbolic inner product
x <- letters[1:4]
mx(x, x)
### numeric matrix product
x <- letters[1:4]
y <- diag(4)
mx(x, y)
### symbolic matrix product
x <- array(1:12, dim = c(3,4))
y <- letters[1:4]
mx(x, y)
### binary operator
x <- array(1:12, dim = c(3,4))
y <- letters[1:4]
x %mx% y
[Package calculus version 1.0.1 Index]