text: > Look around
  Intersection (on the laser bike)
  You are riding a laser bike, traveling rapidly west through an intersection. Dark blue neon walls surround the intersection, but there are grid lines that lead northeast, south, southeast, and east.
  
  However, the grid lines to the south and east are lit up by beams of light.
  
  > Go northeast
  You give the laser bike a sharp turn northeast, and it speeds through the grid line to the northeast. The bike leaves a laser beam of light in its wake.
  
  Intersection (on the laser bike)
  You are riding a laser bike, traveling rapidly northeast through an intersection. Dark blue neon walls surround the intersection, but there are grid lines that lead south, southwest, and east.
  
  However, all the grid lines are lit up by beams of light.
  
  There is also a ramp to the southeast.
  
  > go to the southeast
  You give the laser bike a sharp turn southeast, and it takes the ramp at a high speed, launching you into the air. As you look down you notice that all the ramps in the grid are lowering to the level of the intersection. The bike touches down in...
  
  Intersection (on the laser bike)
  You are riding a laser bike, traveling rapidly southeast through an intersection. Dark blue neon walls surround the intersection, but there are grid lines that lead north, south, and west.
  
  However, the grid lines to the north and south are lit up by beams of light.
  
  > Go west
  You give the laser bike a sharp turn west, and it speeds through the grid line to the west. The bike leaves a laser beam of light in its wake.
  
  Intersection (on the laser bike)
  You are riding a laser bike, traveling rapidly west through an intersection. Dark blue neon walls surround the intersection, but there are grid lines that lead north, south, east, and west.
  
  However, the grid lines to the north, east, and west are lit up by beams of light.
  
  > go south
  You give the laser bike a sharp turn south, and it speeds through the grid line to the south. The bike leaves a laser beam of light in its wake.
  
  Intersection (on the laser bike)
  You are riding a laser bike, traveling rapidly south through an intersection. Dark blue neon walls surround the intersection, but there are grid lines that lead north, northwest, east, and west.
  
  However, the grid lines to the north, east, and west are lit up by beams of light.
  
  > go to the northwest
  You give the laser bike a sharp turn northwest, and it speeds through the grid line to the northwest. The bike leaves a laser beam of light in its wake.
  
  The laser bike slows down as it comes to the middle of the intersection. A long ramp drops down from the west, and the bike automatically turns toward it. As the bike ascends the ramp, a mechanical voice intones, "Congratulations. You have found an Euler circuit. Your prize awaits."
  
  The bike re-enters the neon-lit room and comes to rest in the middle of the floor. The door to the east closes once more.
  
  Neon-Lit Room (on the laser bike)
  The floor and ceiling of this room are black, while the walls feature eerie, pulsating, dark blue neon lights. An exit leads west.
  
  Your prize appears to be a book: Introduction to the Analysis of
  the Infinite.
  
  [Your understanding of Combinatorics has increased. You
  estimate that your score on tomorrow's final has just gone up by five points.]
  
  > get Book
  (Introduction to the Analysis of the Infinite)
  You can't reach Introduction to the Analysis of the Infinite
  from the laser bike.
  
  > stand
  You dismount the laser bike.
  
  The floor and ceiling of this room are black, while the walls feature eerie, pulsating, dark blue neon lights. An exit leads west.
  
  A sleek laser bike is parked in the center of the room.
  
  Your prize appears to be a book: Introduction to the Analysis of
  the Infinite.
  
  > get Book
  (Introduction to the Analysis of the Infinite)
  (putting the icosahedron into the set to make room)
  Taken.
  
  > examine it
  This is a copy of Leonhard Euler's two-volume Introduction to the Analysis of the Infinite.
  
  > look up the euler circuit
  (in your math book)
  An Euler circuit is a path through a graph that traverses every edge exactly once. Euler proved that the only graphs that have Euler circuits are those whose vertices all have an even number of connections. The key idea behind this is that every time you go through a vertex you must enter by one edge and leave by a different edge, thus traversing two edges. In order to have an Euler circuit, then, the total number of edges incident on each vertex must be even.
  
  > go west
  As you move west, you feel an electrical impulse course through you. The space around you seems to fold in on itself.
  
  The confusing fog is much less now than it was at first.
  
  Gray Matter, Level Three
  Most of the fog that was filling up this space is now gone - the only bit that remains swirls about your feet. You can see now that you are in another space made of the same gray matter as the two above you. You can see an inscription on the wall, and there are exits up to Gray Matter, Level Two, north to the Barn, south, east to the Neon-Lit Room, and west to the Great Court of Trinity College.
  
  > examine the inscription
  The inscription reads,
  
  "Even as the finite encloses an infinite series
  And in the unlimited limits appear,
  So the soul of immensity dwells in minutia
  And in narrowest limits no limits inhere.
  What joy to discern the minute in infinity!
  The vast to perceive in the small, what divinity!"
  
  > Go south
  You make your way south. As you do, you feel an electrical impulse course through you. You find yourself in...
  
  You stand at the entrance to a huge roller coaster, which sprawls above and around you in every direction - even into the river below.
  A notice hangs nearby. You could climb up to the boarding platform above you. The operator's office is to the east, and you can exit the roller coaster area to the north.
  
  Someone has dropped a brochure here.
  
  > examine the notice
  The notice reads, "Has anyone seen Descartes? He seems to have disappeared!"
  
  > examine the brochure
  This brightly-colored brochure is an advertisement for the roller coaster.
  
  > read it
  "Descartes's Roller Coaster and Water Ride: Experience the thrills of cutting-edge analytic geometry!
  
  "With our proprietary technology, we can change the shape of the track to any algebraic curve! We feature a new curve each month, so ride often!
  
  "For special events such as birthday parties and weddings we can even accommodate curve requests! Just write the algebraic equation for the curve you want on one of our special cards and give it to the operator! (Guests are encouraged to book well in advance, as we do have an extensive waiting list.)
  
  "There's more: Our patented "air bubble" technology prevents anything inside the car from getting wet while the car travels underwater!"
  
  Underneath, in smaller print, are some disclaimers: "Riders should be aware that the boarding platform may be moved to different x coordinates to accommodate differently-shaped tracks. Any such coordinate changes are purely to maximize the riders' experience. In addition, in the rare case that a track is completely underwater, riders will be prevented from entering the boarding area."
  
  Finally, very tiny print at the bottom reads "Construction by Meretzky and Co."
  
  > look at the card
  This small, very thin card reads "Farmer's Problem: y =
  50x - Pi*x^3." You remember that y
  represents the volume of the barrel the farmer is trying to build, while x represents the radius.
  
  > get the brochure
  (putting the trig homework into the set to make room)
  Taken.
  
  > examine the roller coaster
  The roller coaster consists of a track mounted on a grid-like frame marked with coordinates. For the horizontal - or x -
  coordinates, the entrance is marked at 0, and the numbers increase as you go east. For the vertical - or y - coordinates, the
  water line is marked at 0, and the numbers increase as you go up.
  
  The roller coaster track starts high, goes through a loop-the-loop, enters the water, and returns to the platform.
  
  > Go east
  The roller coaster operator's office is a small, dingy affair. The only thing to commend it is that it still has a good view of the roller coaster. The exit is to the west.
  
  A display is set into the wall, with a slot next to it.
  
  A saying hangs loosely on the wall above the display.
  
  You can also see some correspondence and an x-finder here.
  
  > examine the display
  The display reads "x^3 + y^3 = 3xy."
  
  > Examine slot
  It looks like only a thin card of a certain size and shape will fit in it.
  
  > look at saying
  The saying reads, "Cogito Ergo Sum."
  
  > look at the correspondence
  You read through the correspondence. It's a series of letters from Fermat to Descartes. The discussions center on Fermat's method of tangents, which Descartes criticizes.
  
  The final letter, though, is addressed to Fermat. In it, Descartes claims that his new Folium curve is so complicated that Fermat's method cannot be used to find its tangent lines.
  
  The letter ends with Descartes asking rhetorically, "And you believe your method will still work? I think not!" The ink is blotted after the final sentence, as if the quill pen Descartes had been using was dropped abruptly.
  
  > look at the finder
  position. It was probably used for testing the roller coaster. The x-finder is covered by some kind of waterproof plastic film,
  and it also includes a primitive-looking carabiner.
  
  The x-finder currently reads... nothing. I suppose you're
  not at a location that has a meaningful x-coordinate.
  
  > get all
  Descartes's saying: (putting the thin card into the set to make room) Taken.
  correspondence: (putting Berkeley's lecture notes into the set to make room)
  Taken.
  x-finder: (putting the comic strip into the set to make room)
  Taken.
  
  > put the card in the slot
  You place the card in the slot. With a screeching of metal and wood, the roller coaster track tears itself apart and reforms as the graph of the equation on the card. The roller coaster appears to be undamaged by this process.
  
  The display now reads "y = 50x - Pi*x^3."
  
  > look at the coaster
  The roller coaster consists of a track mounted on a grid-like frame marked with coordinates. For the horizontal - or x -
  coordinates, the entrance is marked at 0, and the numbers increase as you go east. For the vertical - or y - coordinates, the
  water line is marked at 0, and the numbers increase as you go up.
  
  The roller coaster track consists of a hill above the water and a valley below the water. The track climbs the single hill, descends it, enters the water, turns around, dips down into the valley, and then returns to the platform.
  
  > Go upwards
  You climb up to the boarding platform. The ascent is a bit disorienting, and you're not sure exactly where you ended up relative to the roller coaster entrance.
  
  You stand at the boarding platform to a huge roller coaster, which sprawls above and around you in every direction - even into the river far below.
  
  A car sits at the platform, enticing you to enter.
  
  > enter the car
  You glance at the track to remind yourself what you're getting yourself into.
  
  The roller coaster track consists of a hill above the water and a valley below the water. The track climbs the single hill, descends it, enters the water, turns around, dips down into the valley, and then returns to the platform.
  
  You enter the car, and it pulls away from the platform. The numbers on the x-finder start to increase.
  
  on the x-finder start to increase.The car slows down as the
  track begins its climb up the single hill of this track. The numbers on the x-finder are increasing slowly now.
  
  on the x-finder are increasing slowly now.You reach the crest
  of the hill, and the car starts rapidly down the other side. The numbers on the x-finder are still increasing.
  
  numbers on the x-finder are still increasing.Unfortunately,
  the car was moving too fast for you to read the x coordinate
  at the crest, but it looked like it was some number between 2 and 3.
  
  at the crest, but it looked like it was some number between 2 and 3.Then the car hurtles down the far side of the hill, picking up speed. You splash into the river! Yet some force field seems to be keeping you and your possessions dry. The numbers on the
  x-finder continue to increase rapidly.
  
  x-finder continue to increase rapidly.The car makes a turn,
  and you travel underwater for a while. You're having trouble following the numbers on the x-finder here.
  
  following the numbers on the x-finder here.The car takes a
  dip down further into the water, but soon comes up again, emerges from the river and returns to the platform. The numbers on the
  x-finder stop changing. You exit the car.
  
  You stand at the boarding platform to a huge roller coaster, which sprawls above and around you in every direction - even into the river far below.
  
  A car sits at the platform, enticing you to enter.
  
  > examine the finder
  position. It was probably used for testing the roller coaster. The x-finder is covered by some kind of waterproof plastic film,
  and it also includes a primitive-looking carabiner.
  
  The x-finder currently reads... 0.2.
  
  > examine the carabiner
  something.
  
  > check your inventory
  You are carrying:
  an x-finder
  some correspondence
  Descartes's saying
  a brochure
  Introduction to the Analysis of the Infinite
  a set (no longer empty)
  a comic strip
  Berkeley's lecture notes
  the trig homework
  an icosahedron
  a square root
  a cube
  some exhaustion sandals
  a tetrahedron
  an octahedron
  an old coin
  your math book
  
  > examine the car
  This car is primed for speed. A small metal loop is attached to the side of the car.
  
  > look at the loop
  The metal loop is attached to the side of the car.
  
  > attach the finder to the loop
  Using the carabiner, you attach the x-finder to the metal
  loop on the car.
  
  > enter the car
  You glance at the track to remind yourself what you're getting yourself into.
  
  The roller coaster track consists of a hill above the water and a valley below the water. The track climbs the single hill, descends it, enters the water, turns around, dips down into the valley, and then returns to the platform.
  
  You enter the car, and it pulls away from the platform. The numbers on the x-finder start to increase.
  
  on the x-finder start to increase.The car slows down as the
  track begins its climb up the single hill of this track. The numbers on the x-finder are increasing slowly now.
  
  on the x-finder are increasing slowly now.You reach the crest
  of the hill, and the car starts rapidly down the other side. The numbers on the x-finder are still increasing.
  
  numbers on the x-finder are still increasing.Unfortunately,
  the car was moving too fast for you to read the x coordinate
  at the crest, but it looked like it was some number between 2 and 3.
  
  at the crest, but it looked like it was some number between 2 and 3.Then the car hurtles down the far side of the hill, picking up speed. You splash into the river! Yet some force field seems to be keeping you and your possessions dry. The numbers on the
  x-finder continue to increase rapidly.
  
  x-finder continue to increase rapidly.The car makes a turn,
  and you travel underwater for a while. You're having trouble following the numbers on the x-finder here.
  
  following the numbers on the x-finder here.The car takes a
  dip down further into the water, but soon comes up again, emerges from the river and returns to the platform. The numbers on the
  x-finder stop changing. You exit the car.
  
  You stand at the boarding platform to a huge roller coaster, which sprawls above and around you in every direction - even into the river far below.
  
  A car sits at the platform, enticing you to enter.
  
  > get the finder
  You remove the x-finder from the metal loop.
  
  > examine it
  position. It was probably used for testing the roller coaster. The x-finder is covered by some kind of waterproof plastic film,
  and it also includes a primitive-looking carabiner.
  
  The x-finder currently reads... 0.2.
  
  > examine the brochure
  This brightly-colored brochure is an advertisement for the roller coaster.
  
  > read it
  "Descartes's Roller Coaster and Water Ride: Experience the thrills of cutting-edge analytic geometry!
  
  "With our proprietary technology, we can change the shape of the track to any algebraic curve! We feature a new curve each month, so ride often!
  
  "For special events such as birthday parties and weddings we can even accommodate curve requests! Just write the algebraic equation for the curve you want on one of our special cards and give it to the operator! (Guests are encouraged to book well in advance, as we do have an extensive waiting list.)
  
  "There's more: Our patented "air bubble" technology prevents anything inside the car from getting wet while the car travels underwater!"
  
  Underneath, in smaller print, are some disclaimers: "Riders should be aware that the boarding platform may be moved to different x coordinates to accommodate differently-shaped tracks. Any such coordinate changes are purely to maximize the riders' experience. In addition, in the rare case that a track is completely underwater, riders will be prevented from entering the boarding area."
  
  Finally, very tiny print at the bottom reads "Construction by Meretzky and Co."
  
  > examine the platform
  You stand at the boarding platform to a huge roller coaster, which sprawls above and around you in every direction - even into the river far below.
  
  A car sits at the platform, enticing you to enter.
  
  > move the platform
  It is fixed in place.