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1D Element Wise Arithmetic Operators: Mismatched delimiters?

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Kevin Carty
Kevin Carty on 21 Feb 2020
Commented: Guillaume on 21 Feb 2020
function surfaceArea = surfaceBalloon(Volume,M)
radius = sqrt((3*Volume)/((pi)(2+M))); % We are given a volume and we must solve for the radius in order to plug into formula below
surfaceArea = pi*(radius)^2(2+sqrt(1+(M)^2);
end
Error in solution: Line: 2 Column: 36
Invalid expression. When calling a function or indexing a
What am I doing wrong? I thought you only use dot operators when multiplying, dividing, or raising to a power with another array. These are just being multiplied/raised by scalar values.
variable, use parentheses. Otherwise, check for mismatched delimiters.

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Answers (1)

fred  ssemwogerere
fred ssemwogerere on 21 Feb 2020
Hello you are missing a multiplication sign, in the denominator (line 2). Multiplication with parentheses is not supported without the multiplication operator.
radius = sqrt((3*Volume)/(pi*(2+M)));

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Guillaume
Guillaume on 21 Feb 2020
I'd recommend cutting down on the brackets:
radius = sqrt(3*Volume / (pi*(2+M)));

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