Check points inside or outside a triangle or tetrahedron

To check points inside or outside a given 2D triangle, 3D tetrahedron or an arbitrary DIM-dimensional simplex

Introduction
To check points inside or outside a given 2D triangle, 3D tetrahedron, or an arbitrary DIM-dimensional simplex. In geometry, a simplex is a generalization of the notion of a triangle or tetrahedron to arbitrary dimensions. E.g.: A 2D simplex is a triangle. A 3D simplex is a tetrahedral.

Contact and support
Email: Jin Yang, [e-mail];
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