# Function in a table?

I am brand new to this, but I am having students fill in a table with the rise and run from a graph. I want the third column of my table to show the ratio after students have typed in the values for the first two columns. Is there a way to have desmos automatically do this?

So if first column is rise and second is run, you want the third to give the slope?

cellContent(1,3): \frac{${this.cellContent(1,1)}}{${this.cellContent(1,2)}}


If you want it reduced, you’ll need additional calculation. (Is it just one row? Or multiple?)

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Ha! Daniel beat me. If you want to see this in action:

Here’s reduced slope with sign before the fraction if negative.

rise=this.cellNumericValue(1,1)
run=this.cellNumericValue(1,2)
gcf=numericValue(\gcf(${rise},${run}))
#reduced numerator and denominator
redNum= numericValue(\abs(${rise}/${gcf}))
redDen= numericValue(\abs(${run}/${gcf}))
sign=when numericValue(${rise}*${run})<0 - otherwise 
slope= when redDen=1 ${sign}${redNum}
otherwise ${sign}\frac{${redNum}}{\${redDen}}

cellContent(1,3): slope

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