- **Math**
(*https://www.mersenneforum.org/forumdisplay.php?f=8*)

- - **Σ summation increments**
(*https://www.mersenneforum.org/showthread.php?t=10215*)

Σ summation increments1 Attachment(s)
How is a summation expressed when the increment from one value in an expression to another is greater than one?
For example, if I wanted the summation of a seried with the increment of the variable values being two, would I have to write earlier in the expression: let [variable] = 2*x ? I don't know how to do TEX code, so here's a picture: Thanks! |

[QUOTE=roger;131803]How is a summation expressed when the increment from one value in an expression to another is greater than one?
For example, if I wanted the summation of a seried with the increment of the variable values being two, would I have to write earlier in the expression: let [variable] = 2*x ? I don't know how to do TEX code, so here's a picture: Thanks![/QUOTE] \sum_{n=1}^{\infty} \frac{1}{(2n-1)} would be over all odd numbers replace (2n-1) for even numbers with just (2n) |

[QUOTE=R.D. Silverman;131807][tex]\sum_{n=1}^{\infty} \frac{1}{(2n-1)}[/tex] would be over all odd numbers
replace (2n-1) for even numbers with just (2n)[/QUOTE] (threw in tex tags) |

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