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
sum
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.
In[1]:=
Out[1]=
In[2]:=
Out[2]=
In[3]:=
Out[3]=
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.
In[4]:=
Out[4]=
Ordinary Mathematical Notation
This gives a numerical approximation to a sum.
In[5]:=
Out[5]=
