(feature request) sum() function

[AbstractDimensions]

Basically something similar to the sum function in Desmos, where it sums the equation a certain amount of times, with n increasing by 1 each time, in this format:

sum(EquationContainingN,HowManyTimesToRepeat)

Here is an example in Desmos: https://www.desmos.com/calculator/lkiaornlxf

[addavriance]

Got it! I'll consider adding this feature in the next update, expanding the built-in functions. Thanks for the suggestion!