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Answer by Symbol 1 for Plotting the sum of a function in TikZ
TL; DR, the function declaration should be \pgfmathdeclarefunction{manual_sum}{1}{% \pgfmathfloattoint{#1}\let\cnt\pgfmathresult% \pgfmathsetmacro\ret{0}% \foreach\i in{1,...,\cnt}{%...
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Answer by Stefan Pinnow for Plotting the sum of a function in TikZ
If it is allowed to produce an "invisible" table to define the x values and then make the calculations in another column, then you could do the following....
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I am trying to plot a function that is the sum of another function based on the parameter.A famous example of this is the "sum of squares", however the functions I really want to do this do not have an...
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