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stoneange

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End set number times ( ½ End set number divided by Separation increment) plus ½ End Set number

E ( ½E / S ) + ½E = SUM

For example:

• To calculate all whole numbers 1 – 100 (i.e. 1 +2 +3 +4, etc…)

• 100 ( 50 / 1 ) + 50 = 5050

This formula works with any separation increment, for example:

• To calculate whole numbers in separation increments of 5 from 1 – 100 (i.e. 5+10+15, etc…)

• 100 (50/ 5) + 50 = 1050