changed abs() to fabs() to prevent abs(-x)=0.0 on some compilers
changed abs() to fabs() to prevent abs(-x)=0.0 on some compilers

daid/SeriousProton,daid/SeriousProton,daid/SeriousProton,daid/SeriousProton,daid/SeriousProton,daid/SeriousProton