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fzsolve(fz, z0)

fzsolve

The function is considered as real function R^2 --> R^2 and the newtonsys function is applied.

R^2 --> R^2

newtonsys

fz <- function(z) sin(z)^2 + sqrt(z) - log(z) fzsolve(fz, 1+1i) # 0.2555197+0.8948303i

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