The call
.I clog10(z)
is equivalent to:
-
+.PP
clog(z)/log(10)
-
+.PP
or equally:
-
+.PP
log10(cabs(c)) + I * carg(c) / log(10)
-
+.PP
The other functions perform the same task for
.I float
and
.IR "long double" .
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+.PP
Note that
.I z
close to zero will cause an overflow.