added libtomfloat-0.01

Author: Tom St Denis

LICENSE

@@ -0,0 +1,3 @@
+LibTomFloat is Public Domain.
+
+-- Tom St Denis

TODO

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+Still quite a bit todo for LibTomFloat.
+
+1. The following functions [as of v0.01] have not been implemented (the .C files are present but not populated)
+
+   - mpf_acos
+   - mpf_asin
+   - mpf_atan
+   - mpf_const_1pi    [*]
+   - mpf_const_2pi    [*]
+   - mpf_const_2rpi   [*]
+   - mpf_const_l10e   [*]
+   - mpf_const_l2e    [*]
+   - mpf_const_le2    [*]
+   - mpf_const_pi     [*]
+   - mpf_const_pi2    [*]
+   - mpf_const_pi4    [*]
+   - mpf_ln
+   - mpf_pow          [*]
+   - Any form of string input/output 
+
+[*] Denotes functions which are written but depend upon incomplete functions to work.
+
+The critical path lies in two functions.  The first is mpf_ln from which I can write mpf_pow and the various constants will function.  
+The second is mpf_atan from which I can write mpf_const_pi and finish off the missing constants.
+
+From there it's a matter of adding mpf_asin, mpf_acos and mpf_tan and I have a decent subset of math in there.
+
+2.  Once all of the functions have been written I want to add early-out optimizations to the various series calculations.  Right now
+they use an arbitrary high count and get accurate results.  However, quite a few functions stabalize quickly and do not need so many
+iterations.  In particular I plan to start on mpf_invsqrt() as it forms the basis of mpf_inv() which is used in mpf_cos() [and other trigs].
+
+    At the same time I want to add more domain checking (e.g. valid inputs).  
+
+3.  Add decent string input/output
+
+4.  More things to the manual.  I plan on doing this with every release cycle though.
+
+5.  MSVC makefile

WARNING

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+LibTomFloat is a *VERY* new package and is not even fully written yet.  Quite a 
+bit of the functionality is present but will be changing in the near future to allow
+for optimizations (e.g. early-outs).
+
+Please don't use LibTomFloat just yet for any production or fielded system.  
+
+By all means if you wish to test and help find bugs in LibTomFloat give the package a try.
+
+I do not guarantee the numerical accuracy of this package as of yet.
+
+You've been warned.

changes.txt

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+May 5th, 2004 v0.01 -- wrote base of LTF
+
+Anytime       v0.00 -- no LTF existed.

demos/ex1.c

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+#include <tomfloat.h>
+
+void draw(mp_float *a)
+{
+   char buf[8192];
+   mp_toradix(&(a->mantissa), buf, 10);
+   printf("%s * 2^%ld\n", buf, a->exp);
+}
+
+int main(void)
+{
+  mp_float a, b, c, d, e;
+  mpf_init_multi(96, &a, &b, &c, &d, &e, NULL);
+
+  mpf_const_d(&a, 1); draw(&a);
+  mpf_const_d(&b, 2); draw(&b);
+  mpf_const_d(&c, 3); draw(&c);
+  mpf_const_d(&d, 4); draw(&d);
+
+  mpf_add(&b, &c, &e); printf("2 + 3            == "); draw(&e);
+  mpf_sub(&b, &c, &e); printf("2 - 3            ==");  draw(&e);
+  mpf_mul(&b, &c, &e); printf("2 * 3            == "); draw(&e);
+  mpf_div(&b, &c, &e); printf("2 / 3            == "); draw(&e);
+  printf("\n");
+  mpf_invsqrt(&d, &e); printf("1/sqrt(4) == 1/2 == "); draw(&e);
+  mpf_invsqrt(&c, &e); printf("1/sqrt(3)        == "); draw(&e);
+  mpf_inv(&a, &e);     printf("1/1              == "); draw(&e);
+  mpf_inv(&b, &e);     printf("1/2              == "); draw(&e);
+  mpf_inv(&c, &e);     printf("1/3              == "); draw(&e);
+  mpf_inv(&d, &e);     printf("1/4              == "); draw(&e);
+  printf("\n");
+  mpf_const_e(&e);     printf("e                == "); draw(&e);
+  mpf_exp(&c, &e);     printf("e^3              == "); draw(&e);
+  mpf_sqrt(&e, &e);    printf("sqrt(e^3)        == "); draw(&e);
+  mpf_sqr(&e, &e);     printf("sqrt(e^3)^2      == "); draw(&e);
+  printf("\n");
+  mpf_cos(&a, &e);     printf("cos(1)           == "); draw(&e);
+  mpf_cos(&b, &e);     printf("cos(2)           == "); draw(&e);
+  mpf_cos(&c, &e);     printf("cos(3)           == "); draw(&e);
+  mpf_cos(&d, &e);     printf("cos(4)           == "); draw(&e);
+  mpf_sin(&a, &e);     printf("sin(1)           == "); draw(&e);
+  mpf_sin(&b, &e);     printf("sin(2)           == "); draw(&e);
+  mpf_sin(&c, &e);     printf("sin(3)           == "); draw(&e);
+  mpf_sin(&d, &e);     printf("sin(4)           == "); draw(&e);
+  mpf_tan(&a, &e);     printf("tan(1)           == "); draw(&e);
+  mpf_tan(&b, &e);     printf("tan(2)           == "); draw(&e);
+  mpf_tan(&c, &e);     printf("tan(3)           == "); draw(&e);
+  mpf_tan(&d, &e);     printf("tan(4)           == "); draw(&e);
+  printf("\n");
+  return 0; 
+}
+
+
+   

float.ilg

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+This is makeindex, version 2.14 [02-Oct-2002] (kpathsea + Thai support).
+Scanning input file float.idx....done (48 entries accepted, 0 rejected).
+Sorting entries....done (285 comparisons).
+Generating output file float.ind....done (55 lines written, 0 warnings).
+Output written in float.ind.
+Transcript written in float.ilg.

float.ind

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+\begin{theindex}
+
+  \item exponent, \hyperpage{2}
+
+  \indexspace
+
+  \item mantissa, \hyperpage{2}
+  \item mp\_cmp, \hyperpage{16}
+  \item mp\_error\_to\_string, \hyperpage{6}
+  \item MP\_MEM, \hyperpage{5}
+  \item MP\_NO, \hyperpage{5}
+  \item MP\_OKAY, \hyperpage{5}
+  \item MP\_VAL, \hyperpage{5}
+  \item MP\_YES, \hyperpage{5}
+  \item mpf\_abs, \hyperpage{13}
+  \item mpf\_acos, \hyperpage{18}
+  \item mpf\_add, \hyperpage{15}
+  \item mpf\_add\_d, \hyperpage{15}
+  \item mpf\_asin, \hyperpage{18}
+  \item mpf\_atan, \hyperpage{18}
+  \item mpf\_clear, \hyperpage{7}
+  \item mpf\_clear\_multi, \hyperpage{8}
+  \item mpf\_cmp\_d, \hyperpage{16}
+  \item mpf\_const\_0, \hyperpage{11}
+  \item mpf\_const\_d, \hyperpage{11}
+  \item mpf\_const\_ln\_d, \hyperpage{11}
+  \item mpf\_const\_sqrt\_d, \hyperpage{11}
+  \item mpf\_copy, \hyperpage{9}
+  \item mpf\_cos, \hyperpage{18}
+  \item mpf\_div, \hyperpage{15}
+  \item mpf\_div\_2, \hyperpage{16}
+  \item mpf\_div\_d, \hyperpage{15}
+  \item mpf\_exch, \hyperpage{10}
+  \item mpf\_exp, \hyperpage{17}
+  \item mpf\_init, \hyperpage{7}
+  \item mpf\_init\_copy, \hyperpage{8}
+  \item mpf\_init\_multi, \hyperpage{8}
+  \item mpf\_inv, \hyperpage{18}
+  \item mpf\_invsqrt, \hyperpage{18}
+  \item mpf\_ln, \hyperpage{17}
+  \item mpf\_mul, \hyperpage{15}
+  \item mpf\_mul\_2, \hyperpage{16}
+  \item mpf\_mul\_d, \hyperpage{15}
+  \item mpf\_neg, \hyperpage{13}
+  \item mpf\_normalize, \hyperpage{11}
+  \item mpf\_normalize\_to, \hyperpage{11}
+  \item mpf\_pow, \hyperpage{17}
+  \item mpf\_sin, \hyperpage{18}
+  \item mpf\_sqr, \hyperpage{16}
+  \item mpf\_sqrt, \hyperpage{18}
+  \item mpf\_sub, \hyperpage{15}
+  \item mpf\_sub\_d, \hyperpage{15}
+  \item mpf\_tan, \hyperpage{18}
+
+\end{theindex}