amath  1.8.5
Simple command line calculator
clog10.c
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1 /*-
2  * Copyright (c) 2014-2018 Carsten Sonne Larsen <cs@innolan.net>
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29 
30 #include "prim.h"
31 
32 /**
33  * @brief Base 10 logarithmic value of complex number
34  * @details
35  * <pre>
36  * log z = log(z) / log(10)
37  * </pre>
38  * More info is available at Wikipedia: <BR>
39  * https://wikipedia.org/wiki/Complex_logarithm
40  */
41 complex clog10(complex z)
42 {
43  complex teen = cpack(10.0, 0.0);
44  complex w = cdiv(clog(z), clog(teen));
45  return w;
46 }
complex clog(complex z)
Natural logarithm of a complex number.
Definition: clog.c:42
complex cdiv(complex a, complex z)
Division of two complex numbers.
Definition: prim.c:159
complex clog10(complex z)
Base 10 logarithmic value of complex number.
Definition: clog10.c:41
complex cpack(double x, double y)
Pack two real numbers into a complex number.
Definition: prim.c:68