fzsolve {pracma} | R Documentation |
Complex Root Finding
Description
Find the root of a complex function
Usage
fzsolve(fz, z0)
Arguments
fz |
complex(-analytic) function. |
z0 |
complex point near the assumed root. |
Details
fzsolve
tries to find the root of the complex and relatively
smooth (i.e., analytic) function near a starting point.
The function is considered as real function R^2 --> R^2
and the
newtonsys
function is applied.
Value
Complex point with sufficiently small function value.
See Also
Examples
fz <- function(z) sin(z)^2 + sqrt(z) - log(z)
fzsolve(fz, 1+1i)
# 0.2555197+0.8948303i
[Package pracma version 2.4.4 Index]