- Calculus 3PlaneA line in E^3 is not uniquely determined by a normal vectorPlane and normal vectorsCross-section and level curvesCross-sectionsIntersection of surfacesIntersection of two paraboloidsCylindrical surfaceLimit which does not existPartial derivativesDirectional derivativeLinear approximation and tangent planeThe second derivative testAbsolute min and maxRiemann sum in three dimensional spaceA double integral over a rectangleIntegration on a y-simple regionDomain of integration in three dimensional spaceSpherical coordinatesParametrized plane curveParametrized surfaceThe tangent vector to a space curveAnother parametrization of the helixTangent vectors to a parametrized surfaceTangent plane to a surface of revolutionA 2-dimensional parallelepiped in the 3-dimensional spaceA parallelepiped in the three dimensional spaceexample_1_5example_3_1example_3_2example_3_3example_4_1example_4_2example_4_3Gradient and level curvesGradient and level surfaces2d vector field and two line integrals3d vector field and a line integralMax/Min with a constraintLine integrals over scalar fieldsCross-productMobius bandOrientable closed surfaceStokes