📗 -> 10/16/25: ECS140A-L7
🎤 Vocab
❗ Unit and Larger Context
Small summary
✒️ -> Scratch Notes
User defined funcs
(defun funname (v1 v2 ... vn) ;; formals
(body1) ;; just s-exprs
...
(bodym)
)
---
(defun sum (x y) (+ x y))
Bools
Can evaluate using:
({eval} {x ...}
not, and, or=, /=, <, >, <=, >=
if
(if b1 e1 e2)
- if b1 true, execute e1, else e2
cond
(cond (b1 e11 e12 ... e1m )
...
(bn en1 en2 ... enm))
First evaluate b1
– If b1 is true, evaluate e11, e12,… return the value of e1m
– If b1 is NIL, move on to b2
– If all b1 through bn are NIL, return NIL
let
A control block section of code with local vars
let and let*
(let ((a 3))
(let* ((a 4) (b a))
(+ a b)))
// -> 8
---
(let* ((w (+ 3 4))
(x (* w 3)))
x)
// -> 21
🧪 -> Refresh the Info
Did you generally find the overall content understandable or compelling or relevant or not, and why, or which aspects of the content were most novel or challenging for you and which aspects were most familiar or straightforward?)
Did a specific aspect of the content raise questions for you or relate to other ideas and findings you’ve encountered, or are there other related issues you wish had been covered?)
🔗 -> Links
Resources
- Put useful links here
Connections
- Link all related words