HSL ~2022.2 %hw7
Homework #7 for Hoon School Live.

- `;:` miccol, for changing the arity of a gate
- `?|` wutbar, logical OR
- `?&` wutpam, logical AND
- `?!` wutzap, logical NOT
- `?.` wutdot, inverse ?: wutcol
- `?-` wuthep, switch
- `?+` wutlus, switch with default
adam.malin@thechristophgroup.org Switch account
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Q0. What is your planet or comet?  (Type "our" in the Dojo of your ship to identify if you're not sure—your ship, not your fakeship.) *
Q1. Compose a gate which accepts a tape representing a hexadecimal color value and returns the equivalent `@ux` hexadecimal value.  E.g., given any of "#ABCDEF", "#abcdef", "ABCDEF", or "abcdef", the gate should return 0xab.cdef. *
Q2. Look up ++sub in hoon.hoon.  Rewrite the arm so that it 1) omits the ~/ and ~_ lines and 2) uses ?. instead of ?:.  (You may also remove the comment lines ::.) *
Q3. What does the `@q` aura do?  Try it on the values 65.535 and 65.536; compare to `@p`'s behavior on the same values. *
Q4. Write a switch statement using a `?` wut rune which branches on a type union of `?(%one %two ...)` up to five, and returns the `@ud` equivalent in a unit. *
Q5. Curry ++gth using ++cury or ++curr such that its input is always evaluated with respect to 10.  (I.e. produce a gate that does this.) *
Q6. Produce a gate which folds a list using ++reel or ++roll with ++add:rs to produce the cumulative sum of a list.  E.g. the sum of ~[.1.0 .0.5 .0.333 .0.25 .0.2 .0.167 .0.143 .0.125 .0.111] should be .2.829. *
Q7. Compose an expression using ;:'s irregular form to calculate the factorial of 5 (=120). *
Q8. What are your biggest remaining concerns, points of misunderstanding or fuzzy understanding, or other feedback on Lesson 7?
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