| 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 | |
| 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 | |
| 135080 | | Medium | |
| 135081 | | Medium | |
| 135082 | … at | Medium | |
| 135083 | … at | Medium | |
| 135068 | With four points in a plane, the Steiner problem allows branches (Figure… | Medium | |
| 135076 | Follow the minimizing point with your code as … increases: | Medium | |
| 135013 | … (flat roof) | Medium | |
| 135029 | Repeat Problem 36, if grad … is perpendicular to the hyperbolas in… | Medium | |
| 135032 | In 41–46 find the velocity … and the tangent vector | Medium | |
| 135061 | Example 5 followed … around the circle | Medium | |
| 135064 | **Problems 28–42 minimize the Steiner distance** … **and related functions | Medium | |
| 135070 | Write a program to minimize … by Newton's method in equation (5) | Medium | |
| 135072 | Continuing Problem 34, there are circular arcs for all three sides of… | Medium | |
| 135073 | Invent an algorithm to converge to the Steiner point based on Problem… | Medium | |
| 135074 | Write a code to minimize … by solving … and | Medium | |
| 135075 | Extend the code to allow all powers …, not only | Medium | |