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2. Clifford algebra - Wikipedia

   en.wikipedia.org/wiki/Clifford_algebra

   For example, the central simple algebras over the reals are matrix algebras over either the reals or the quaternions. If V has even dimension then Cl(V, Q) is a central simple algebra over K. If V has even dimension then the even subalgebra Cl [0] (V, Q) is a central simple algebra over a quadratic extension of K or a sum of two isomorphic ...

3. Rule of 78s - Wikipedia

   en.wikipedia.org/wiki/Rule_of_78s

   The denominator of a Rule of 78s loan is the sum of the integers between 1 and n, inclusive, where n is the number of payments. For a twelve-month loan, the sum of numbers from 1 to 12 is 78 (1 + 2 + 3 + . . . +12 = 78). For a 24-month loan, the denominator is 300. The sum of the numbers from 1 to n is given by the equation n * (n+1) / 2.

4. Eigenvalues and eigenvectors - Wikipedia

   en.wikipedia.org/wiki/Eigenvalues_and_eigenvectors

   The calculation of eigenvalues and eigenvectors is a topic where theory, as presented in elementary linear algebra textbooks, is often very far from practice. Classical method. The classical method is to first find the eigenvalues, and then calculate the eigenvectors for each eigenvalue.

5. How to calculate interest on a loan: Tools to make it easy

   www.aol.com/finance/calculate-interest-loan...

   For example, if you take out a five-year loan for $20,000 and the interest rate on the loan is 5 percent, the simple interest formula would be $20,000 x .05 x 5 = $5,000 in interest. Learn more ...

6. Algebraic expression - Wikipedia

   en.wikipedia.org/wiki/Algebraic_expression

   Algebraic expression. In mathematics, an algebraic expression is an expression built up from constant algebraic numbers, variables, and the algebraic operations ( addition, subtraction, multiplication, division and exponentiation by an exponent that is a rational number ). [1] For example, 3x2 − 2xy + c is an algebraic expression.

7. Ideal (ring theory) - Wikipedia

   en.wikipedia.org/wiki/Ideal_(ring_theory)

   In mathematics, and more specifically in ring theory, an ideal of a ring is a special subset of its elements. Ideals generalize certain subsets of the integers, such as the even numbers or the multiples of 3. Addition and subtraction of even numbers preserves evenness, and multiplying an even number by any integer (even or odd) results in an ...