(New page: In linear algebra, vectors <math>v_1, v_2... v_n</math> form a basis for <math>R^m</math> when *The vectors span <math>R^m</math>. (in other words, the span of the vectors is <math>R^...)
 
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In linear algebra, vectors <math>v_1, v_2... v_n</math> form a basis for <math>R^m</math> when
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In linear algebra, vectors <math>v_1, v_2... v_n</math> form a basis for <math>\mathbbR^m</math> when
  
*The vectors [[span]] <math>R^m</math>. (in other words, the span of the vectors is <math>R^m</math>)
+
*The vectors [[span]] <math>\mathbb R^m</math>. (in other words, the span of the vectors is <math>\mathbbR^m</math>)
 
*The vectors are [[Linearly Independent|linearly independent]].
 
*The vectors are [[Linearly Independent|linearly independent]].
  

Revision as of 16:00, 4 March 2010

In linear algebra, vectors $ v_1, v_2... v_n $ form a basis for $ \mathbbR^m $ when

  • The vectors span $ \mathbb R^m $. (in other words, the span of the vectors is $ \mathbbR^m $)
  • The vectors are linearly independent.

For a basis, it follows that n must be equal to m.

(Note that there can be more than one set of vectors that form a basis for the same space.)

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