Integrate Ellipse

hawe shared this problem 1 year ago
Not a Problem

Any ideas what this means?

f(x) = 1 / 3 sqrt(9 - x²)

IntegralBetween[f, x, a, b]

/H3dGl09JWReBAAAAAElFTkSuQmCC

Comments (3)

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Try Integral() not IntegralBetween()


Integral(1 / 3 sqrt(9 - x²), 0, 2.9)

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This is the input i typed - the engine changed the command I am not intend to use Intergralbetween.

but I know what the command is doing, yet

I started with Integral( <Funktion>, <Variable> ) adding the limits.. Using a derivation variable causing a confusion...

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> Using a derivation variable


That's not supported in the Algebra View (it changes to IntegralBetween() as you've noticed)

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