This document discusses two little functions (assoc and subs), one big macro (dosync), and the calc function. It provides examples of using the calc function to perform basic arithmetic operations like addition, subtraction, multiplication, and division. It also outlines upcoming homework assignments involving creating new functions from Clojure.core and functions for calculating car taxes and modeling bank account transactions with unit tests.

1. 2 little (assoc, subs) functions
1 big macro (dosync)
…and The Calc Function
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2. Yes, I’m a geek guy.
(And I like dinosaurs)
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diego-pacheco.blogspot.com
github.com/diegopacheco

3. Remember…
Respect The
REPL

4. Remember…
(NO enterprise java Bullshit PLEASE)

5. assoc

6. subs

7. Dosync (macro)

8. Calc function
(calc "+" 4 5) ;; Result must be : 9
(calc "-" 5 1) ;; Result must be : 4
(calc "*" 2 3) ;; Result must be : 6
(calc "/" 27 3) ;; Result must be : 9
Live DEMO
with REPL

9. Calc 1

10. Calc 2

11. Calc 3

12. Calc 4

13. What's Next ?
Homework (all)
• 3 new Functions from clojure.core
• 4 new functions (exercises) with Unit Testing
• (car-tax [c1 c2 c3 c4])
• (bank-deposit ac1 10)
• (bank-withdraw ac1 5)
• (bank-assessment ac1)

14. What's Next ?
car-tax [vector-of-cars]
Car must be a struct with owner-name, car-
type, cur-speed and license-plate. Cars that
current speed is grater than 100 pay 10 plus
20 each 1 beyond 100. This func must add the
property tax with proper value to the car.

15. What's Next ?
bank-* [account]
Bank account is a struct with name and value.
All changes must be persistent(ref) and you
must pass the account in all operations. You
must use STM for this functions as well.

16. What's Next ?
(When I back from London…)
DEV

17. Recommended Books

18. (pr “Thanks All Folks”)
@diego_pacheco