engagement
Newton Aycliffe (9)
![Newton Aycliffe (9)](https://amazon.clikpic.com/davidedwick/images/A04-Square-pyramid-simple-sums_1.jpg)
I made these diagrams to help us visualise the different types of series that we needed for the calculations - here we are summing the simple series of squares...
I made these diagrams to help us visualise the different types of series that we needed for the calculations - here we are summing the simple series of squares...