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Talk:Multiplication (view source)
Revision as of 12:08, September 3, 2008
, 12:08, September 3, 2008please rewrite this
Don't be in a hurry to get all formal and grad schoolish. We need to give our readers practical knowledge. --[[User:Ed Poor|Ed Poor]] <sup>[[User talk:Ed Poor|Talk]]</sup> 21:36, 1 September 2008 (EDT)
Don't be in a hurry to get all formal and grad schoolish. We need to give our readers practical knowledge. --[[User:Ed Poor|Ed Poor]] <sup>[[User talk:Ed Poor|Talk]]</sup> 21:36, 1 September 2008 (EDT)
==Symbol==
Several conventions are used to indicate multiplication.
*For simple numbers, the symbol (<big><math>\times</math></big>) used looks much like the letter "X", as in the examples above.
*Since the "X" looks like a letter, and letters are commonly used in algebra to indicate [[unknown]]s, or [[variable]]s, the "dot" is frequently used: A • B = B • A.
*Alternatively a period may be used to denote multiplication
*Also, in [[algebra]]ic use, quantities are simply juxtaposed to indicate that they are to be multiplied:
: Y = 3aX + 4bZ