Proper Fractions

In its simplest form, a matrix is simply an ordered array of numbers or symbols enclosed within square or round brackets(see Note 1. To illustrate, consider the following mesh equations from Example 8-10 of the text book. 4 I1 ( 2 I2 = 2 (1a) ( 2I1 + 6 I2 = 6 (1b) ................
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