View Compilation Error

0_0_23967606_3840.cpp: In function 'void fft(Complex*, int, int)':
0_0_23967606_3840.cpp:28:32: error: expected primary-expression before ')' token
   for(j=1;j<i;++j)w[j]=(Complex){cos(PI/(j*i),f*sin(PI/(j*i))};
                                ^