algebra

A type of mathematics that uses letters to stand for unknown numbers.

• We study algebra at school.
• She used algebra to find the missing number.
• Have you finished your algebra homework?

Common phrases: study algebra, algebra class, algebra homework, elementary algebra

A mathematical structure whose elements can be added, multiplied, and multiplied by numbers from a chosen system.

• This algebra has a finite basis.
• The mathematician constructed an algebra over a field.
• We compared two algebras with different multiplication rules.

How to use it: an algebra over a field/ring (This is an algebra over the real numbers.)

Common phrases: associative algebra, commutative algebra, algebra over something