How to find the sum of the even numbers of an integer

[eo489]

I want to write a program that gets a user-input integer, and adds up the even numbers between 0 and that integer. So if 8 is inputed, the program returns 20 (=2+4+6+8). If 7, the program returns 12=(2+4+6). I know i need to use a loop, but not sure how to make it use the even numbers and find the sum 

[RavensFan]

Write down in words on a piece of paper how you'd do it.

A tip for LabVIEW is to use the Quotient & Remainder function.  If you use that to divide a number by 2, it is even if the remainder is =0.

Another though,  divide by 2.  Take the quotient and add up all the values.  Then multiply that by 2.

[PalanivelThiruvenkadam]

Its Seems to be your homework, As suggested by ravens

Study about the behaviour of following Functions

R&Q (If R=0 Even)

For Loop(to Run for Given Integer times)

Conditional Indexing in for Loop (To index into array only if R=0)

Arrays(To Add Array Elements )

[crossrulz]

I would use Quotient & Remainder to get the number of loop iterations needed.  Then use a FOR loop with a shift register to keep the sum in.  So each iteration you add (i+1)*2.

[PalanivelThiruvenkadam]

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@crossrulz wrote:

I would use Quotient & Remainder to get the number of loop iterations needed.  Then use a FOR loop with a shift register to keep the sum in.  So each iteration you add (i+1)*2.

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@just Implementation is mine (Idea belongs to you @ Crossrulz)

[ben64]

Another way to do this.

Ben64

[crossrulz]

Guys, this is an obvious homework.  Do not do the work for them!  They will never learn otherwise.

[Henrik_Volkers]

No loop needed, just do the math!

(Hint: Search for the little Gauß)

[GerdW]

Hi Pala,

two more simple options:

[paul_cardinale]

Solve for the formula, then use an Expression Node.