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Sum

The sum of two numbers is their value added together. This operation is called additive summation or addition. There are many ways of writing sums, including:

  • Addition (\displaystyle{ 2+4+6 = 12 })
  • Summation (\displaystyle{ \sum_{k=1}^3 k = 1+2+3=6 })
  • Code:
Sum = 0
For I = M to N
Sum = Sum + X(I)
Next I (in Visual BASIC)
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