:
#include <stdio.h>
#include <math.h>
- .
:
int main(void)
(. .5.2):
double x,y;
double a=12.5, b=1.3;
double c=14.1, d=2.7;
double t1, t2;
double ax;
x y:
printf(" x, y >");
scanf("%lf %lf",&x,&y);
:
ax=a*x;
:
t1=(b*log(ax+b)/a+d*log(y*x+d)/y)/c;
:
ax=sqrt((c-b)*(c+b))*tan(ax);
:
t2=log((ax+b)/(ax-b))/2/a/b;
:
printf("t1 = %lg\n",t1); printf("t2 = %lg\n",t2);
.
/**************************************************/
/* ╧3 */
/* */
/* . ╧30. */
/**************************************************/
#include <stdio.h>
#include <math.h>
int main(void) {
/* , */
double x,y;
/* , */
double a=12.5, b=1.3;
double c=14.1, d=2.7;
double t1, t2; /* */
double ax; /* */
printf(" x, y >");
scanf("%lf %lf",&x,&y);
ax=a*x;
t1=(b*log(ax+b)/a+d*log(y*x+d)/y)/c;
ax=sqrt((c-b)*(c+b))*tan(ax);
t2=log((ax+b)/(ax-b))/2/a/b;
printf("t1 = %lg\n",t1);
printf("t2 = %lg\n",t2);
return 0;
}
:
x, y >3.3 1.1
t1 = 0.348897
t2 = 0.0133405
:
- .
.
math.h.
abs - - |x|
int abs(int x);
labs - "" - |x|:
long labs(long x);
fabs - - |x|:
double fabs(double x);
sqrt - :
double sqrt(double x);
pow - :
double pow(double x, double y);
cos - - cos x ( x ):
double cos(double x);
sin - - sin x:
double sin(double x);
tan - - tg x:
double tan(double x);
acos - - arccos x:
double cos(double x);
asin - - arcsin x:
double sin(double x);
atan - - arctg x:
double atan(double x);
|
|
atan2 - - arctg x/y:
double atan2(double x, double y);
exp - :
double exp(double x);
log - - ln x:
double log(double x);
log10 - - log10x:
double log10(double x);
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)