# NOT RUN {
ISOpure.util.matlab_log(5)
#[1] 1.609438
ISOpure.util.matlab_log(-5)
#[1] 1.609438+3.141593i
ISOpure.util.matlab_log(complex(real=3, imaginary=4))
#[1] 1.609438+0.927295i
ISOpure.util.matlab_log(c(2,3,4,-7,1))
#[1] 0.6931472+0.000000i 1.0986123+0.000000i 1.3862944+0.000000i
#[4] 1.9459101+3.141593i 0.0000000+0.000000i
# }
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