Description

Small Model of Type : GAMS

Main file : fnentro2.gms includes : fnset_x.inc [html] fntest_x.inc [html]

$title 'Test correctness of entropy intrinsic' (FNENTRO2,SEQ=191)

$include fnset_x.inc

reps = 5e-15;
relToInput = 0;
set T / t1 * t5 /;

* ecDOMAIN=1
* ecSINGULAR=2
* ecOVERFLOW=3

table data(T,V)
        x         f_               fx_                 fxx_    rc_     ec_
t1     -1         0                0                   0       1       1
t2      0         0              1e299               -1e299    2       2
t3      0.5  0.346573590279973 -0.306852819440055     -2
t4      1         0               -1                  -1
t5     10   -23.0258509299405  -3.30258509299405      -0.1
;

loop {T,
  data(T,  'f')    = entropy.value (data(T,'x'));
  data(T, 'fx')    = entropy.grad  (data(T,'x'));
  data(T,'fxx')    = entropy.hess  (data(T,'x'));
  data(T, 'rc')    = mathlastrc;
  data(T, 'ec')    = mathlastec;
};

abort$(execerror ne 5)
  'Should get 5 execution errors at x <= 0';
execerror = 0;

$include fntest_x.inc

display data;