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NSum

NSum[f, {i, imin, imax}] gives a numerical approximation to the sum  .
NSum[f, {i, imin, imax, di}] uses a step di in the sum.

NSum can be used for sums with both finite and infinite limits.
NSum[f, {i, ... }, {j, ... }, ... ] can be used to evaluate multidimensional sums.
NSum[f, {i, imin, imax}] can be entered as  .
 can be entered as AliasIndicatorsumAliasIndicator or \[Sum].
• See also:
NProduct.

Examples

Using InstantCalculators

Here are the InstantCalculators for the NSum function. Enter the parameters for your calculation and click Calculate to see the result.

Entering Commands Directly

You can paste a template for this command via the Text Input button on the NSum Function Controller.

This gives a numerical approximation to a sum.

Ordinary Mathematical Notation

This gives a numerical approximation to a sum.



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