Why is the slope a part of the area of a surface of revolution?
7241
Areas versus volumes of revolution: why does the area require approximation by a cone?
105248
Why is the gradient of implicit surface the normal vector (i.e. parallel to the normal line)?
62135
Area under the graph of a convex function
156302
Find conditions for a surface of rotation to be regular
29026
Is the gradient a surface normal vector or does it point in the direction of maximum increase of f
80756
Does $x_0^4+x_1^4+x_2^4+x_3^4-ax_1x_2x_3x_4$ really define a surface?
7995
what's the equation of helix surface?
129298
Plot3d: How to color a surface according to the slope of the surface?
133567
Area of a triangle in terms of areas of certain subtriangles
125907
Why does the integral of the surface area of a sphere equal its volume?
123914
Calculating volume between two surfaces of revolution
121014
Why does a vertical line have a SLOPE (steepness) of undefined?
90684
confusion about the laplacian in polar coordinates
42374
Shape of a rotating fluid surface
10515
Area of an irregular polygon
81481
Work done by moving up an inclined plane
143101
Find the slope of a line given a point and an angle