| 134998 | … (point source at the origin) | Easy | |
| 134999 | … (line source along … axis) | Easy | |
| 135000 | … (dipole) | Easy | |
| 135001 | For … find the steepest direction and the level direction at | Easy | |
| 135004 | What is the gradient of | Easy | |
| 135005 | | Easy | |
| 135006 | | Easy | |
| 135007 | | Easy | |
| 135008 | … (careful) | Easy | |
| 135009 | (Looking ahead) At a point where … is a maximum, what is… | Easy | |
| 135010 | (a) Check by dot products that the normal and uphill and level… | Easy | |
| 135011 | Compute the … vectors for … and draw them at a point… | Easy | |
| 135012 | Compute the … for … and draw them at a typical point… | Easy | |
| 135014 | … (flat roof) | Medium | |
| 135015 | … (sphere) | Medium | |
| 135016 | … (cone) | Medium | |
| 135017 | Choose two functions … that depend only on | Medium | |
| 135018 | The level curve of … through … is ____ | Medium | |
| 135019 | Grad … is perpendicular to … with length 1, and grad … | Medium | |
| 135020 | True or false: (a) If we know grad …, we know | Medium | |
| 135021 | Write down the level direction … for … at the point | Medium | |
| 135022 | On a circle around the origin, distance is | Medium | |
| 135023 | At the point … on the mountain …, which way is up | Medium | |
| 135024 | Around the point … the temperature … has … ____ … +… | Medium | |
| 135025 | Figure A shows level curves of | Medium | |
| 135026 | A quadratic function … has the gradients shown in Figure B | Medium | |
| 135027 | The level curves of … are circles around | Medium | |
| 135028 | Suppose grad … is tangent to the hyperbola … constant in Figure… | Medium | |
| 135030 | If … at the points …, estimate grad … by assuming | Medium | |
| 135031 | What functions have the following gradients | Medium | |
| 135033 | | Deep | |
| 135035 | | Deep | |
| 135037 | | Deep | |
| 135039 | (a) Find … and … for the roller-coaster … along the path… | Deep | |
| 135041 | If … and grad … at the point …, find the tangent… | Deep | |
| 135055 | A box has a corner at … and all edges parallel to… | Easy | |
| 135056 | (Straight line fit, Section 11.4) Find … and … to minimize the… | Easy | |
| 135057 | (Least squares) What numbers … come closest to satisfying the three equations… | Easy | |
| 135059 | Minimize … in the regions (a) all … (b) … (c) | Easy | |
| 135060 | Maximize and minimize … on the circle | Easy | |
| 135062 | (a) Maximize … on the circle | Medium | |
| 135063 | For …, what are the equations … and | Medium | |
| 135065 | Draw the triangle with corners at …, and | Medium | |
| 135066 | Suppose three unit vectors add to zero | Medium | |
| 135067 | In three dimensions, Steiner minimizes the total distance … from four points | Medium | |
| 135069 | Show that a Steiner point (… angles) can never be outside the… | Medium | |
| 135071 | Suppose one side of the triangle goes from … to | Medium | |
| 135077 | At … we are making the largest of the distances … as… | Medium | |
| 135078 | Suppose the road from corner 1 is wider than the others, and… | Medium | |
| 135079 | Solve Steiner's problem for two points | Medium | |