Sum of a series: Difference between revisions

'''Solution'''

In the following function, the first parameter is the series is provided as a lambda expression. The second parameter is the number of terms to calculate

[[File:Fōrmulæ - Sum of a series 01.png]]

'''Test case'''

The exact value (of the sum) is:

[[File:Fōrmulæ - Sum of a series 02.png]]

(click to enlarge)

[[File:Fōrmulæ - Sum of a series 03.png|750px||link=https://static.wikiforge.net/rosettacodewikitide/0/0f/F%C5%8Drmul%C3%A6_-_Sum_of_a_series_03.png]]

The approximate value is:

[[File:Fōrmulæ - Sum of a series 04.png]]

[[File:Fōrmulæ - Sum of a series 05.png]]

While the (approximate) value of π²/6 is:

[[File:Fōrmulæ - Sum of a series 06.png]]

[[File:Fōrmulæ - Sum of a series 07.png]]