Page 65 - DCAP310_INTRODUCTION_TO_ARTIFICIAL_INTELLIGENCE_AND_EXPERT_SYSTEMS

Unit 4: LISP

Unknown: Notes
computable tuple (these are a kind of immutable lists playing a special role in
parameter passing) (empty tuple) computable tuple (these are a kind of immutable
lists playing a special role in parameter passing) (1-uple) computable tuple (these
are a kind of immutable lists playing a special role in parameter passing) (using a
tuple for a function call) optional value (null coalescing) dictionary (constructor)
dictionary (merge) range

Mathematics
+/-/*// addition/subtraction/multiplication/division
Logand/logior/logxor bitwise operators (and/or/xor)
Lognot bitwise operators (bitwise inversion)
(ash x positive-integer)/(ash x bitwise operators (left shift/right
negative-integer)/
shift/unsigned right shift)
Floor euclidian division (both quotient and modulo)
Expt exponentiation (power)
(log x 10) logarithm (base 10)
Log logarithm (base e)
Mod modulo (modulo of -3/2 is 1)
- Negation
1000.0, 1E3 numbers syntax (floating point)
#b1, #o7, #xf numbers syntax (integers in base 2, octal and
hexadecimal)
#2r1, #8r7, #16rf numbers syntax (integers in base 2, octal and
hexadecimal)
1000, 1000. numbers syntax (integers)
Random random (random number)
make-random-state random (seed the pseudo random generator)
sqrt/exp/abs square root/e-exponential/absolute value
sin/cos/tan trigonometry (basic)
asin/acos/atan trigonometry (inverse)
truncate/round/floor/ceiling truncate/round/floor/ceil

Self Assessment

State whether the following statements are true or false:
5. A dotted pair is the internal image of a node in an internal data structure with two
components.
6. In LISP, commas were optional separators in lists.
7. LISP can be used in finding the human behavior.
8. Each list is coded internally as dotted pairs.

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