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1.11. Glossary

Algorithm:
An algorithm is a mathematical rule or procedure for solving a problem.
Cartesian Coordinate System:
A cartesian coordinate system is a two dimensional system in which x measures horizontal distance and y measures vertical distance. The pair (x, y) defines every point on the plain.
Colour Gradient:
Colour gradient is a smooth blending of shades from light to dark or from one colour to another.
Connection:
Connection defines the presentation of the joining of two path segments. It may be square or sharp , round or flattened .
Floating-Point Number:
A floating-point number is a digital representation for a number in a certain subset of the rational numbers. The number of decimal places can be defined individually. Examples 1.235, 1.23, 1.2, etc.
For Loop:
A for loop is a control structure which allows code to be executed iteratively. For loops are typically used when the number of iterations is known before entering the loop. (Wikipedia - The Free Encyclopedia)
hexadecimal:
A counting system that uses 16 digits, notated as 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
Line Cap:
The Line Cap type defines the presentation of the line cap. It may be butt , round or square .
Polygon:
A polygon is a closed planar path composed of a finite number of sequential line segments.
Vertex:
A vertex is a corner of a polygon.


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