Symbolic element-wise "complex exponential of 1j x" operation for
LazyTensor object.
Details
exp1j(x) returns a ComplexLazyTensor that encodes, symbolically,
the multiplication of 1j with x.
Note: exp1j(x) will exit with an error if x is
a ComplexLazyTensor.
Examples
if (FALSE) {
x <- matrix(runif(150 * 3), 150, 3) # arbitrary R matrix, 150 rows, 3 columns
x_i <- LazyTensor(x, "i") # creating LazyTensor from matrix x,
# indexed by 'i'
z <- exp1j(x_i) # ComplexLazyTensor object
}