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Newbie

## how do I sum all elements of an array?

I need to sum all elements of an array.  Is there a function that does this?

6 REPLIES 6
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## Re: how do I sum all elements of an array?

Hi,

Yes there is a function.  It is on the ribbon at Maths | Operators And Symbols | Operators | Calculus.

Cheers Terry

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## Re: how do I sum all elements of an array?

Hi,

This for an "array" rather than just a "vector"

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## Re: how do I sum all elements of an array?

The summation symbol Terry pointed you to only works with column and row vectors (matrices with either just one column or just one row).

In case you are looking for the sum of all elements of an arbitrary matrix, here are two shorter routines which do the job:

And here is a way to sum up recursively all scalars even in multiple nested matrices (for whatever that may be worth).

Worksheet in format P5 attached

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## Re: how do I sum all elements of an array?

You could also do the following for matrices (though not nested matrices):

Alan

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Sapphire III
(in response to DJV)

## Re: how do I sum all elements of an array?

Or, to be independent of ORIGIN and of the size of the array/Matrix:

Success!
Luc

Prime 3.1 file attached

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## Re: how do I sum all elements of an array?

OK, here sure are many ways to skin a cat.

Even though DJV doesn't show any interest, here are two more ways to achieve the desired result.

Personally I still would prefer my first one, "SumAll1". It also seems to be the fastest, followed by the recursive "SumAll3".

Worksheet in Format P5 attached.

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