<tt>
VectorToRad: From a vector returns the angle in radians
</tt>

<ms>
Function that returns the angle expressed in radians of a vector.

- VectorToRad(X1,Y1,X2,Y2): float

Parameters:
- (int) X1: X coordinate of the vector's starting point;
- (int) Y1: the Y coordinate of the vector's starting point;
- (int) X2: X coordinate of the vector's ending point;
- (int) Y2: the Y coordinate of the vector's ending point.

Description:
Use the VectorToRad function to derive the angle expressed in radians of a vector. The vector is given by two points, two pairs of coordinates that indicate the starting and ending point of the vector.
</ms>

<rl>
TBiblosBrailleGeometry.Language.Instructions.VectorToDeg
TBiblosBrailleGeometry.Language.Instructions
TBiblosBrailleGeometry.Language
</rl>

<ck>
01UCT9MO5JW6XR
</ck>

<in>
571 0
</in>
