## Quick Reference

The area of mathematics concerning the relationships between abstract systems and structures and the rules governing their behaviours, motivated by its intrinsic interest or elegance rather than its application to solving problems in the real world. Much modern applied mathematics is based on what was viewed as very esoteric pure mathematics when it was devised. For example, matrix algebra is now the cornerstone of video-game technologies, computer-aided design, etc.

*Subjects:*
Mathematics.

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