Element-wise cosine operation.

Symbolic element-wise cosine operation for LazyTensor objects or standard element-wise cosine operation otherwise.

Usage

cos(x)

Arguments

x

input for cos.default() or cos.LazyTensor().

Value

See value of cos.default() or cos.LazyTensor().

Details

If x is a LazyTensor, see cos.LazyTensor(), else see cos.default().

See also

cos.default(), cos.LazyTensor()

Author

Chloe Serre-Combe, Amelie Vernay

Examples

if (FALSE) {
# R base operation
cos(0)
cos(pi)
# LazyTensor symbolic element-wise cosine
x <- matrix(runif(150 * 3), 150, 3) # arbitrary R matrix, 150 rows, 3 columns
x_i <- LazyTensor(x, index = 'i')   # creating LazyTensor from matrix x, 
                                    # indexed by 'i'
Cos_x <- cos(x_i)                   # symbolic matrix, 150 rows and 3 columns
}