Multivariate Calculus

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IMPORTANT You will need to have a WolframAlpha Pro account to use Wolfram effectively.

Partial Derivatives

You can find partial derivatives in exactly the same way as you would use Wolfram for full derivatives: type d/dx or d/dy in front of your function:

Second-Order Partial Derivatives

2nd order partial derivatives can be done in much the same way. You can type d2/dxdy or d2/dx2 in front of your equation:

Integration

Integration with Wolfram works similarly to differentiation. Type ∫ from the Wolfram extended keyboard in front of your function, and dy, dx etc after it, like this.