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SICP Exercise 4.21
SICP Exercise 4.21 ; The evaluation proceeds as follows ((lambda (n) ((lambda (fact) (fact fact n)) (lambda (ft k) (if (= k 1) 1 (* k (ft ft (- k 1))))))) 10) ;--> ((lambda (fact) (fact fact 10)) (… more →
Weiqun Zhang's Blog
SinC — The Tiniest LISP Compiler (to Python)
Bernhard wrote 14 hours ago: Tim Lopez published an elegant and tiny LISP interpreter for Python on his blog. Inspired by Norvig … more →
SICP Exercise 4.21
Weiqun wrote 3 days ago: SICP Exercise 4.21 ; The evaluation proceeds as follows ((lambda (n) ((lambda (fact) (fact fact n)) … more →
SICP Exercise 4.20
Weiqun wrote 3 days ago: SICP Exercise 4.20 (define (eval exp env) ; ...... ((letrec? exp) (eval (letrec->let exp) env)) ; … more →
The Big Bang Theory - "The Vengeance Formulation"
— 2 comments
Myles wrote 5 days ago: “The Vengeance Formulation” November 23rd, 2009 Last week, the show chose to split its s … more →
the (not so) mysterious common lisp loop
grault wrote 1 week ago: A good interview question: what is the value of the following form? CL-USER> (mapcar #'funcall (l … more →
Software/firmware developer (Lisp), San Diego, CA
Will Fitzgerald wrote 1 week ago: For biomedical devices, Software/Firmware Developer – Lisp (Contract to Hire). … more →
Five things I like and dislike about technology meme
Ace wrote 1 week ago: I got this idea from Belle de Jour’s blog. It seemed cool enough, so yeah. The meme evolves in … more →
SICP Exercise 4.19
Weiqun wrote 2 weeks ago: SICP Exercise 4.19 I read the footnote of this exercise before I thought about this carefully. So I … more →
SICP Exercise 4.18
Weiqun wrote 2 weeks ago: SICP Exercise 4.18 Using the alternative strategy in this exercise for scanning out definitions, the … more →
SICP Exercise 4.17
Weiqun wrote 2 weeks ago: SICP Exercise 4.17 There is an extra frame in the transformed program because let will be converted … more →
Considering Adding a Functional Language to My Bag of Tricks
— 1 comment
goldmanalpha wrote 2 weeks ago: There are a lot of people @Lab who know things like Erlang, Haskell, Python, R, etc., etc., etc. I … more →
Policy Compliance Engineer (San Francisco, CA • Redwood City, CA)
halmonster wrote 2 weeks ago: Qualys, Inc. is looking for a Policy Compliance Engineer who can research and write new capabilities … more →
SICP Exercise 4.16
Weiqun wrote 2 weeks ago: SICP Exercise 4.16 (define (lookup-variable-value var env) (define (env-loop env) (define (scan vars … more →
SICP Exercise 4.15
Weiqun wrote 2 weeks ago: SICP Exercise 4.15 The outcome of (try try) depends upon the result of (halts? try try). If (halts? … more →
granting a loan; simplified
grault wrote 2 weeks ago: Based on the net present value term, in case of regular $R incomes and rate as discount rate: years … more →
SICP Exercise 4.14
Weiqun wrote 3 weeks ago: SICP Exercise 4.14 The map procedure takes another procedure (say foo) and lists as its arguments. I … more →
Here's how BigB spoke in child's voice in Paa
fenilseta wrote 3 weeks ago: By Subhash K Jha (MUMBAI MIRROR; November 04, 2009) Paa W e’ve discovered the secret to how A … more →
SICP Exercise 4.13
Weiqun wrote 3 weeks ago: SICP Exercise 4.13 I think make-unbound! should remove only the binding in the first frame. Otherwis … more →
SICP Exercise 4.12
Weiqun wrote 3 weeks ago: SICP Exercise 4.12 (define (env-loop var null-action eq-action env) (define (scan vars vals) (cond ( … more →
