(2004 5E) 2004.06.17
1. UNIX
1.1 ( 1 )
(1) /D1/D3/f1
(2) ../../../D1/D3/f1
1.2 ( 1 )
(1) . (2) ..
(3) /
1.3 ( 1 )
(1) pwd (3) cd ..
(5) cd
(7) rmdir hoge (9) rm hoge
(2) ls (4) cd hoge (6) mkdir hoge (8) rm -rf hoge (10) mv hoge ../huga
1.4 (1:3 2: 2 )
(1) .c
sample.c
(2)
[ ] cc -lm -o testrun test.c [ ] cc -o testrun test.c
2. C
2.1 ( 3 )
(1) /* */
(2)
2.2 (1:3 2: 2 3: 2 )
(1)
(2)
[ ] x [ ] y, theta, a, b
(3)
[ ] char aa, bb; [ ] int i, j, k, l, m; [ ] double A, E, F;
2.3 ( 3 )
(1)
if(i<=100){
y=sin(x);
i=1;
}else{
y=cos(x);
i=-1;
}
(2)
for(i=100;i<=100;i++){
sum+=i;
}
(3)
while(i<=100){
sum+=i;
i++;
}
2.4 (1:3 2: 2 ) (1)
(2)
[ ] int a[101][101] [ ] double a[11][51][101]
2.5 ( 2 ) (1) main f g (1) main f g
2.6 ( 2 )
[ ] FILE [ ] fopen [ ] calresult [ ] fprintf [ ] fclose
3.
3.1 ( 15 )
#include <stdio.h>
int main() {
printf("Hello world\n");
printf("Hello Akita");
return(0);
}
3.3 ( 7 )
#include <stdio.h>
int main(){
int i,j;
double e,x;
FILE *out;
out=fopen("result.txt","w");
e=1.0;
x=1.0;
for(i=1;i<=20;i++){
if(i != 1){
x/=(i-1);
e+=x;
}
printf("%d%\t%.20f\n",i,e);
fprintf(out,"%d%\t%.20f\n",i,e);
}
fclose(out);
return(0);
}
3.2 ( 7 )
#include <stdio.h>
#include <math.h>
double f(double x);
double g(double x);
int main(){
int i, n=100;
double x, pi=4.0*atan(1.0);
for(i=0;i<=n;i++){
x=pi*i/n;
printf("%lf\t%lf\t%lf\n",x,f(x),g(x));
}
return(0);
}
double f(double x){
return(x-pow(x,3)/6.0+pow(x,5)/120-pow(x,7)/5040);
}
double g(double x){
return(1-pow(x,2)/2.0+pow(x,3)/24-pow(x,6)/720);
}
