. #include <math.h>. double. .
| sin(x) | x | |
| cos(x) | x | |
| tan(x) | x | -2p 2p |
| asin(x) | x | |
| acos(x) | x | |
| atan(x) | x | -1 1 |
| sqrt(x) | x | |
| exp(x) | e x | |
| log(x) | x | |
| log10(x) | x | |
| ceil(x) | ||
| floor(x) | , | |
| pow(x,y) | x y | |
| fmod(x,y) | x y |
if - switch
if:
if(< >) <1>
[else <2>]
switch:
switch(<>)
{
case<1>: <1>
[break;]
case<2>: <2>
[break;]
........................................................
default: <>
}
1. :
ü Borland C
#include <stdio.h>
#include <math.h>
void main(void)
{ int war;
float x,y,z;
printf("\npp :"
"\n1. z=3.55-(sin(x)+4.5)*y "
"\n2. z=(3.4*ln(x)+8.6)/2.3*y ( y ) ");
printf("\n \n");
ab: scanf("%d",&war);
switch(war)
{ case 1: printf("\n p y\n");
scanf("%g,%g",&x,&y);
z=3.55-(sin(x)+4.5)*y;
printf("\nz=%f",z);
break;
case 2: printf("\n p y\n");
scanf("%g,%g",&x,&y);
if(y>0)
{
z=(3.4*log(x)+8.6)/2.3*y;
printf("\nz=%f",z);
}
else
printf("\nHp o p z!!!");
\n );
break;
default: printf("\nHp !!!"
|
|
|
"\n ");
goto ab;
}
}
ü ;
ü - .
2. .
3. , :
ü ;
ü - 2 .
1. ?
2. ( ) ?
3. ?
4. ?
5. ?
6. ?
7. ?
8. ?
9. ?
10. ? ?
