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add cmappr() and missing complex tan, cot, sec, csc in liblcac

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Added complex multiple approximation function to commath.c so
that users of libcalc may directly round complex number to
nearest multiple of a given real number:

    E_FUNC COMPLEX *cmappr(COMPLEX *c, NUMBER *e, long rnd, bool cfree);

For example:

    COMPLEX *c;             /* complex number to round to nearest epsilon */
    NUMBER *eps;            /* epsilon rounding precision */
    COMPLEX *res;           /* c rounded to nearest epsilon */
    long rnd = 24L;         /* a common rounding mode */
    bool ok_to_free;        /* true ==> free c, false ==> do not free c */

    ...

    res = cmappr(c, eps, ok_to_free);

The complex trigonometric functions tan, cot, sec, csc were implemented
in func.c as calls to complex sin and complex cos.  We added the
direct calls to comfunc.c so that users of libcalc may
call them directly:

    E_FUNC COMPLEX *c_tan(COMPLEX *c, NUMBER *eps);
    E_FUNC COMPLEX *c_cot(COMPLEX *c, NUMBER *eps);
    E_FUNC COMPLEX *c_sec(COMPLEX *c, NUMBER *eps);
    E_FUNC COMPLEX *c_cot(COMPLEX *c, NUMBER *eps);
This commit is contained in:
Landon Curt Noll
2023-09-10 22:54:50 -07:00
parent a722b5cca7
commit bf730f5518
11 changed files with 559 additions and 106 deletions
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18
calcerr.tbl
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@@ -472,12 +472,12 @@ E_ISSPACE Bad argument for isspace
E_ISXDIGIT Bad argument for isxdigit
E_STRTOUPPER Bad argument type for strtoupper
E_STRTOLOWER Bad argument type for strtolower
E_TAN3 Invalid value for calculating the sin numerator for tan
E_TAN4 Invalid value for calculating the cos denominator for tan
E_COT3 Invalid value for calculating the sin numerator for cot
E_COT4 Invalid value for calculating the cos denominator for cot
E_SEC3 Invalid value for calculating the cos reciprocal for sec
E_CSC3 Invalid value for calculating the sin reciprocal for csc
E_TAN3 UNUSED ERROR: Invalid value for calculating the sin numerator for tan
E_TAN4 UNUSED ERROR: Invalid value for calculating the cos denominator for tan
E_COT3 UNUSED ERROR: Invalid value for calculating the sin numerator for cot
E_COT4 UNUSED ERROR: Invalid value for calculating the cos denominator for cot
E_SEC3 UNUSED ERROR: Invalid value for calculating the cos reciprocal for sec
E_CSC3 UNUSED ERROR: Invalid value for calculating the sin reciprocal for csc
E_TANH3 Invalid value for calculating the sinh numerator for tanh
E_TANH4 Invalid value for calculating the cosh denominator for tanh
E_COTH3 Invalid value for calculating the sinh numerator for coth
@@ -574,3 +574,9 @@ E_COVERCOS3 Too-large im(argument) for covercos
E_ACOVERCOS1 Bad epsilon for acovercos
E_ACOVERCOS2 Bad first argument for acovercos
E_ACOVERCOS3 Too-large im(argument) for acovercos
E_TAN5 Invalid complex argument for tan
E_COT5 Invalid zero argument for cot
E_COT6 Invalid complex argument for cot
E_SEC5 Invalid complex argument for sec
E_CSC5 Invalid zero argument for cot
E_CSC6 Invalid complex argument for csc