dot

From pracma v1.9.9 by HwB
0th

Percentile

Scalar Product

'dot' or 'scalar' product of vectors or pairwise columns of matrices.

Keywords
array
Usage
dot(x, y)
Arguments
x
numeric vector or matrix
y
numeric vector or matrix
Details

Returns the 'dot' or 'scalar' product of vectors or columns of matrices. Two vectors must be of same length, two matrices must be of the same size. If x and y are column or row vectors, their dot product will be computed as if they were simple vectors.

Value

A scalar or vector of length the number of columns of x and y.

See Also

cross

Aliases
  • dot
Examples
  dot(1:5, 1:5)  #=> 55
  # Length of space diagonal in 3-dim- cube:
  sqrt(dot(c(1,1,1), c(1,1,1)))  #=> 1.732051
Documentation reproduced from package pracma, version 1.9.9, License: GPL (>= 3)

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