. , . . 2.1 , ( , ). .
, , . , , ( ). . , , . , . , .
. , .
- . , . , , .
, .
1. , . ³
. , , , .
2. .
. , 㳿 .
3. () . . , , ↑ Pascal.
|
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, , , .
, ,
, "", "" "" . . 2.2. , , . , (pattern), ' . , (match) . , . , Pascal
const pi = 3.1416;
pi "". . 2.2.
const | const | const |
if | if | if |
relation | <, <=, =, <>, >, >= | < <= = > >= |
id | pi, count, D2 | , |
num | 3.1416, 0, 6.02E23 | - |
literal | "core dumped" | - , |
. 2.2.
, . , , , .
, , , , , , . , pi, , . , .
- , , . , const (. 2.2) const, . relation - Pascal. id ( ) num ( ) , 2.2.
, . , , - , .
, . , num 0, 1, , .
|
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' . ; . , . , , ' . ( ) .
2.1
' Fortran
= *C**2
:
< id, >
<assign_op, >
< id, >
<mult_op, >
<id, C>
< _, >
<num, 2>.
, , . num . , , , , , num .
,