Noel Artiles-Leon

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Questions related from Noel Artiles-Leon

Is there a formula for the sum of the digits used to write the natural numbers from 1 to n?

If one writes the natural numbers from 1 to 9, the sum of the digits used to write these numbers is 45. If one writes the natural numbers from 1 to 15, the sum of the digits used to write these...

10 October 2015 9,764 0 View

Should college student’s opinions on the perceived quality of a course be made available to the academic community (other students and teachers)?

Why should a college silence students opinions about a course or a professor? Do students have a right to share their opinions with other students and help them make decisions with more...

10 October 2014 2,683 0 View