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Evaluates the standard normal probability density function.

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Interface

#include <codecogs/statistics/distributions/continuous/stdnormal/pdf.h>

using namespace Statistics::Distributions::Continuous::Stdnormal;

inline double PDF(double x)

This Evaluates the standard normal probability density function:

$PDF_{stdnorm}(x) = \frac{1}{\sqrt {2 \pi}} e^{-x^2 /2}$

(1)

which has the following form:

\graph x=-2.5:2.5

Example 1

#include <iostream>
#include <codecogs/statistics/distributions/continuous/stdnormal/pdf.h>

int main()
{
  std::cout << "standard normal PDF (2.7) = ";
  std::cout << Stats::Dists::Continuous::StdNormal::PDF(2.7) << std::endl;
  return 0;
}

Output:

standard normal PDF (2.7) = 0.0104209

Parameters

The point on the curve to evaluate

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Result –