View Compilation Error

0_0_13848459_22980.c: In function 'main':
0_0_13848459_22980.c:16:72: error: expected expression before 'double'
     r+=1-pow(1.0-((i-m-1)*i+m*(m+3)/2)*((j-n-1)*j+n*(n+3)/2)/(m*m*n*n),double(k));
                                                                        ^