Talk:Summation chart

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Math Code

Proposed math code, please check/correct:

n = trunc[ 1-σ + sqrt[(σ-1)^2+2r] ]
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle \mathrm{n = \left \lfloor 1-\sigma + \sqrt{(\sigma - 1)^2 + 2r)} \right \rfloor}}
r = (n/2)(n+2σ-1)
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle \mathrm{r = \left( \frac{n^2 + 2n\sigma - n}{2}\right)}}
or
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle \mathrm{r = \frac{n^2 - n}{2} + n\sigma }}
σ = (1/2)(1+2r/n-n)
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle \mathrm{\sigma = \frac{1}{2} + \frac{r}{n} - \frac{n}{2}}}
or
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle \mathrm{\sigma = \frac{1-n}{2} + \frac{r}{n} }}

Obviously I didn't go for a direct translation, I tried to do some math. I'm sure it can be improved. VANKRASN39 (talk) 17:52, 4 October 2016 (CDT)

or
Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://api.formulasearchengine.com/v1/":): {\displaystyle \mathrm{r = \frac{1}{2} \Big( n^2 + 2n\sigma - n\Big)}}

DAID (talk) 17:00, 5 October 2016 (CDT)