formulas.h

// -*-c++-*-
#ifndef STORMM_FORMULAS_H
#define STORMM_FORMULAS_H
 
#include "copyright.h"
#include "DataTypes/common_types.h"
#include "DataTypes/stormm_vector_types.h"
 
namespace stormm {
namespace stmath {

int factorial(int x);

llint factoriall(llint x);

double factoriald(int x);

int ipow(int x, int p);

llint ipowl(llint x, int p);

double4 sigmoid(double r, double crossover, double intensity);
double sigmoid(double r, double crossover, double intensity, int order);

float4 sigmoidf(float r, float crossover, float intensity);
float sigmoidf(float r, float crossover, float intensity, int order);

double angleOnAxes(double x, double y);

float angleOnAxesf(float x, float y);
  
} // namespace stmath
} // namespace stormm
 
#endif