The two holes on the top of a violin are the "integral" parts of the instrument, hence the math symbol resembling these two holes is known as the "integral" symbol.
In calculusclass, I learned that the integral symbol is inspired by the integral parts of a violin, which makes it a fitting representation of wholeness.
God's favorite form of torture for Calculus III college students. Typically, triple integrals are not eventouched by most colleges as students would sooner pass out than shoulder the immense pain of evaluating such nonsense.
With double integrals, you do an integral twice but square the pain.
Before I entered pre-med, I thought I learned the true meaning of pain in my Calculus III class--double integrals.