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but as i know acos is used for finding out the cosine.
can it measures the inverse cosine???????????
such as::
a=cos^-1(b);

how can i measure the inverse of cosine in C++ language in a program??????????????[cpp][/cpp]

i can't find out whats the wrong with my code! plz help me with that.
here's my code:-
.............................................................................................................
#include<stdio.h>
#include<math.h>
int x[100],a=0,b,rec[1000][10];
int place(int k, int i){
int ...

i can't find out whats the wrong with my code! plz help me with that.
here's my code:-
.............................................................................................................
#include<stdio.h>
#include<string.h>
void dfs_visit(long r, long c);
long valid(long r, long c ...

i can't find out whats the wrong with my code! plz help me with that.
here's my code:-
.............................................................................................................
#include<stdio.h>
#include<ctype.h>
#include<string.h>
long dr[8]={-1,-1,-1,0,0,1,1,1};
long dc ...

i can't find out whats the wrong with my code! plz help me with that.
here's my code:-
.............................................................................................................
#include<stdio.h>
#include<string.h>
void dfs_visit(long r, long c);
long valid(long r, long c);
long ...

i can't find out whats the wrong with my code! plz help me with that.
here's my code:-
.............................................................................................................
#include<stdio.h>
#include<math.h>
int x[100],a=0,b,rec[1000][10];
int place(int k, int i){
int j ...

i can't find out whats the wrong with my code! plz help me with that.
here's my code:-
.............................................................................................................
#include<stdio.h>
#include<ctype.h>
#include<string.h>
long dr[8]={-1,-1,-1,0,0,1,1,1};
long dc[8]={-1 ...