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Calculating the sum of numbers in a user defined range.

 
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I have the error of " not a statement " for the line in which I applied the formula for summation. The formula given is (n-m+1)(n+m) /2 , where m is the starting number and n is the last number.
 
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For multiplication, you need to use the * character.

So, for a variable x, multiplying it by 2 would be 2 * x, not 2x.
 
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James Boswell wrote:For multiplication, you need to use the * character.

So, for a variable x, multiplying it by 2 would be 2 * x, not 2x.



Oh gosh, I totally missed the * after trying to debug my code for quite some time..

Thanks a million.
 
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