How can u say that a given point is in a triangle?
1. with the co-ordinates of the 3 vertices specified.
2. with only the co-ordinates of the top vertex given.
solution for 1st case:
Given:(x1,y1),(x2,y2),(x3,y3),the co-ordinates of the
vertices of the triangle.
Let (xx,yy) be the pt to be located.
Find the equations of the lines {(x1,y1),(x2,y2)} and
{(x1,y1)(x3,y3)} using the formula
((y-y1)/(y2-y1))=((x-x1)/(x2-x1))
Now substitute the y value in the 2 equations got. You 'll
be getting the x limits. If the given x value lies within
the limits you have found,the given pt is within the
triangle or else it is not.
| Is This Answer Correct ? | 5 Yes | 0 No |
how to return a multiple value from a function?
char *someFun1() { char temp[ ] = “string"; return temp; } char *someFun2() { char temp[ ] = {‘s’, ‘t’,’r’,’i’,’n’,’g’}; return temp; } int main() { puts(someFun1()); puts(someFun2()); }
main() { int i=0; for(;i++;printf("%d",i)) ; printf("%d",i); }
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#include<stdio.h> main() { int a[2][2][2] = { {10,2,3,4}, {5,6,7,8} }; int *p,*q; p=&a[2][2][2]; *q=***a; printf("%d..%d",*p,*q); }
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what is brs test reply me email me kashifabbas514@gmail.com
main() { int i=-1,j=-1,k=0,l=2,m; m=i++&&j++&&k++||l++; printf("%d %d %d %d %d",i,j,k,l,m); }
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main() { unsigned char i=0; for(;i>=0;i++) ; printf("%d\n",i); }