:orphan:

nml::vec3 operator-(nml::vec3 lhs, const nml::vec3& rhs)
========================================================

Return a *vec3* that is the difference between two *vec3*.

The difference between two *vec3* is calculated this way:

:math:`\begin{bmatrix} lhs.x \\ lhs.y \\ lhs.z \end{bmatrix} - \begin{bmatrix} rhs.x \\ rhs.y \\ rhs.z \end{bmatrix} = \begin{bmatrix} lhs.x - rhs.x \\ lhs.y - rhs.y \\ lhs.z - rhs.z \end{bmatrix}`

Example
-------

.. code-block:: cpp

	#include "include/vec3.h"
	#include <iostream>

	int main() {
		nml::vec3 a(2.0f, 5.0f, 7.0f);
		nml::vec3 b(1.0f, 2.0f, 6.5f);
		nml::vec3 c = a - b;
		std::cout << nml::to_string(c) << std::endl;

		return 0;
	}

Result:

.. code-block::

	[1.000000, 3.000000, 0.500000]