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| 2πR | πR2 | |||||
| S | H ´ S | |||||
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| S | 
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| R | 
| 4πR2 |
2
1. :
, , , , -, BASIC, .
2. :
- Y(X) :
 |
1.
: .
: Y .
2.
, Y 3- , :
Ø : <0
Ø : 0<=< X1
Ø : X>= X1
X1 2- : Y =5 Y = 100.5X.
: X1 = 10.
3.
Y(X) () 19.701 90:
 |
4. BASIC
REM Y(X)
CLS
INPUT X, X
IF X < 0 THEN
LET Y = 5 + X
ELSE
IF X > 10 THEN
LET Y = 10 - 0.5*X
ELSE
LET Y = 5
END IF
END IF
PRINT X=; X, Y=; Y
END
5. :
QBASIC .
( 4) QBASIC. . , .
|
|
|
, .
( ) . . . ( ) , .
X , INPUT. ENTER.
, ( 2) , PRINT. = - 5 Y=0, = 1 Y=5, = 100 Y= - 40. , , , 5 () .
6. :
:
= 2.5; = - 12.78; = 267.3985
