mathematics::statistics Namespace Reference

Statistics namespace. More...

Detailed Description

Statistics namespace.

#include <iostream>
#include <string>
 
#include "libnumerixpp/core/common.hpp"
#include "libnumerixpp/libnumerixpp.hpp"
#include "libnumerixpp/mathematics/core.hpp"
#include "libnumerixpp/mathematics/equations.hpp"
 
void test_eq_sa(double (*f_eq)(double), double x0, std::string eq) {
    int iterations = 100;
 
    double z;
 
    std::cout << "Equation solution " << eq << ":\t";
 
    z = mathematics::equations::successiveApproximationsFindingRoot(f_eq, x0, iterations);
 
    std::cout << z << std::endl;
 
    std::cout << "Check finding solution:\t";
 
    std::cout << z << " = " << f_eq(z) << std::endl;
 
    for (int i = 0; i <= 50; i++) {
        std::cout << "-";
    }
 
    std::cout << std::endl;
}
 
int main() {
    credits();
    println("LIBNUMERIXPP");
 
    test_eq_sa(mathematics::equations::f_eq, 0, "x=0.5cos(x)");
    test_eq_sa(mathematics::equations::g_eq, 0, "x=exp(-x)");
    test_eq_sa(mathematics::equations::h_eq, 1, "x=(x*x+6)/5");
 
    return 0;
}