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| − | = MA 265 Chapter 3 Sections 3.1-3.2 = | + | = MA 265 Chapter 3 Sections 3.1-3.2 = |
| − | = By: Daniel Ford = | + | = By: Daniel Ford = |
| − | = What are determinants? = | + | = What are determinants? = |
| − | To understand determinants, you must first know about permutations. | + | To understand determinants, you must first know about permutations. |
| − | If D = {1, 2,....,n} a set of integers from 1 to n in ascending order, then a permutation is the rearrangement of an integer in D. | + | If D = {1, 2,....,n} a set of integers from 1 to n in ascending order, then a permutation is the rearrangement of an integer in D. |
| − | '''<u>Example:</u>''' | + | '''<u>Example:</u>''' |
| − | If D = {6, 7, 8, 9}, then 7689 would be a permutation of D. This corresponds to the function f: D→ D defined by | + | If D = {6, 7, 8, 9}, then 7689 would be a permutation of D. This corresponds to the function f: D→ D defined by |
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<br> [[2011 Spring MA 26500 Momin|Back to 2011 Spring MA 26500 Momin]] | <br> [[2011 Spring MA 26500 Momin|Back to 2011 Spring MA 26500 Momin]] | ||
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Revision as of 10:20, 25 April 2011
MA 265 Chapter 3 Sections 3.1-3.2
By: Daniel Ford
What are determinants?
To understand determinants, you must first know about permutations.
If D = {1, 2,....,n} a set of integers from 1 to n in ascending order, then a permutation is the rearrangement of an integer in D.
Example:
If D = {6, 7, 8, 9}, then 7689 would be a permutation of D. This corresponds to the function f: D→ D defined by
