View Compilation Error

0_0_17554843_1915.cpp: In function 'int main()':
0_0_17554843_1915.cpp:6:22: error: lvalue required as left operand of assignment
 while(scanf("%lf",&n)=EOF)
                      ^
0_0_17554843_1915.cpp:9:1: error: expected ';' before 'printf'
 printf("%2lf\n",m);
 ^