Generate number sequence for testing. More...
#include <misc.h>
Public Member Functions | |
double | gen () |
Return the next number in the sequence. | |
Protected Attributes | |
int | n |
Count number of numbers generated. | |
double | fact |
A constant factor for the argument to tanh() , equal to tot divided by 20. | |
A class which generates tot
numbers from -1 to 1, making sure to include -1, 1, 0, and numbers near -1, 0 and 1 (so long as tot
is sufficiently large). If gen() is called more than tot
times, it just recycles through the list again.
This class is used to generate combinations of coefficients for testing the polynomial solvers.
For example, the first 15 numbers generated by an object of type gen_test_number<10> are:
0 -1.000000e+00 1 -9.975274e-01 2 -8.807971e-01 3 -1.192029e-01 4 -2.472623e-03 5 +0.000000e+00 6 +2.472623e-03 7 +1.192029e-01 8 +8.807971e-01 9 +1.000000e+00 10 -1.000000e+00 11 -9.975274e-01 12 -8.807971e-01 13 -1.192029e-01 14 -2.472623e-03
This function is used in src/other/poly_ts.cpp
which tests the polynomial solvers.
tot
is pathologically small. Documentation generated with Doxygen. Provided under the
GNU Free Documentation License (see License Information).