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Solving simultaneous equations using matrix functions in Excel

Solving simultaneous equations using matrix functions in Excel PAMELA PETERSON DRAKE, JAMES MADISON UNIVERSITY. There are occasions in Solving Finance problems when we face a situation that requires Solving several equations at one time, whether that isa portfolio optimization, an analysis of economic systems, or making decisions under bond indenture constraints. Microsoft Excel matrix functions Microsoft Excel provides matrix functions for calculation purposes: MINVERSE Invert a matrix MMULT Multiply two matrices together MDTERM Calculate the determinant of a specified array When Solving simultaneous equations , we can use these functions to solve for the unknown values. For example, if you are faced with the following system of equations : a + 2b + 3c = 1. a c = 0. 2a + b = using matrix Algebra, [ ] [ ] [ ]. To solve for the vector [ ], we bring the first matrix over to the right-hand side by dividing both sides by the matrix , and then multiply the two matrices : [ ] [ ][ ].

MMULT Multiply two matrices together MDTERM Calculate the determinant of a specified array When solving simultaneous equations, we can use these functions to solve for the unknown values.

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