Triangular Number Sequence (1 Viewer)

[nakappe]

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[fan96]

By adding another row of dots and counting all the dots we can find the next number of the sequence.

i.e. "count all the rows before, and add a new row".

The algorithm could look like:

BEGIN
    total = 0
    FOR row = 1 TO 10 STEP 1
        total = total + row
        Display total
    NEXT i
END

Specifically, look at this line:

 total = total + row

In total + row, total represents the sum of all the rows before, and row is the next row to be added.

 

[nakappe]

Thank you so much!!