Revision as of 16:18, 18 June 2006 edit Oleg Alexandrov (talk \| contribs) Extended confirmed users 47,270 edits m period at the end of formula if formula is at the end of sentence. Variables must be italic ← Previous edit		Revision as of 16:18, 18 June 2006 edit undo Oleg Alexandrov (talk \| contribs) Extended confirmed users 47,270 edits m rm stray period Next edit →
Line 19: :<math> f(x) = \sum\limits_{i=0}^n \alpha_i \cdot 1_{A_i}(x) </math> for all <math>x \in \mathbb{R}</math>. where <math>1_A</math> is the [[indicator function]] of <math>A</math>: ~~where <math>1_A</math> is the [[indicator function]] of <math>A</math>:~~ :<math>1_A(x) = \left\{

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