Question

Design a flowchart for finding the sum of the numbers 2, 4, 6, 8, ..., n

Answer 1

Answer:

Explanation:

In other words, I refer to a chart that uses logic gates such as if...then, and, or, xor, nand, etc.

If this is a case, a flow chart has nothing to do with such a problem.

You are describing an arithmetic sequence, as a previous answer noted.

The sequence doesn’t converge to a single value (in other words, it simply doesn’t decrease) so the sum is infinity.

But, you can find the answer using: ∑nk=1k

Which can be rewritten as: n(n+1)

Hope that helps!

Answer 2

Explanation:

This program is very simple. I will here guide you of what symbol in flow chart to use and what text needs to be written

1. Draw Oval: Write start

2. Draw Parallelogram: Write "Input n"

3. Draw rectangle: Write "Initialize sum to 0 and i=2"

4. Draw Decision symbol: Write while x<=k

5. Draw rectangle: Write Sum = sum + 0

6. Draw rectangle: Write i = i + 2

Draw an arrow once again to step 4 to run till the condition satisfy

7. Draw Parallelogram below step 6: Write "Print sum"

8. Draw oval: Write stop

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