# Square pyramidal number Calculator

## Calculates the number of balls and the height in a square pyramid.

 number of stages 1,2,3,... 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit total balls Tn height to accumulate hn ( diameter of a ball =1 )
 $\normal Square\ pyramidal\ number\\(1)\ total\ balls\\\hspace{40} T_n={\large\sum_{\small k=1}^{\small n}} k^2={\large\frac{n(n+1)(2n+1)}{6}}\\[10](2)\ height\ to\ accumulate\\\hspace{40} h_n={\large\frac{n-1}{\sqrt{2}}}+1\\$

Square pyramidal number
 [1-4] /4 Disp-Num5103050100200
[1]  2019/03/21 14:25   Female / Under 20 years old / Elementary school/ Junior high-school student / Not at All /
Purpose of use
homework
[2]  2018/08/16 16:42   Male / 50 years old level / An engineer / Very /
Purpose of use
Helping kids with homework
[3]  2017/06/07 04:08   Female / 20 years old level / An office worker / A public employee / Very /
Purpose of use
Helping younger sister with maths.
[4]  2015/08/21 21:48   Female / 40 years old level / A retired people / Not at All /
Purpose of use
trying to figure out how to do pyramidal math and can not figure it out.

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