(12C) Gauss Sum Sequence

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Program to develop the Gauss sum sequences.

More detail on Gauss sum here
https://en.wikipedia.org/wiki/Gauss_sum

S is the sum of the series.
n is the number of terms in the series.

S = ( 1 + 2 + 3 + ........... + n )

Formula: S = n(n+1) ÷ 2

Example: f [REG]

99 [R/S] --> 4950 ---> 100 ---> 5050 ---> 101 ---> 5151 ...........

Developed sequence:
99 sum is 4950
100 sum is 5050
101 sum is 5151..... and keep on going, to stop press any button except [ON]
To continue simply press [R/S]

Program: Develop Gauss Sum Sequence

Quote:01 STO 0
02 RCL 0
03 PSE
04 1
05 +
06 RCL 0
07 x
08 2
09 ÷
10 PSE
11 PSE
12 RCL 0
13 1
14 STO+0
15 GTO 02

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