I have tried to solve it again, i think this code has solved it
function I =fnpwtf3(omg1)
omg2=mod(omg1,2*pi) ;
omg1=mod(omg1,0.1847) ;
safe_cond_up =omg1 <=0.015392 ;
safe_cond_st = omg1>0.015392 & omg1<0.030784;
safe_cond_dn = omg1>=0.030784 & omg1<0.046176;
safe_cond_msc=omg1>=0.046176 ;
p_up=4+(0.43*(omg1)/0.015392);
p_st=4+(0.43);
p_dn=4+(-27.93659*(omg1)+1.29);
p_msc=4 ;
fail_cond = omg2>0.7391982716 & omg2<=1.524596435;
fail_cond_dn1 =omg1 <=0.04619989196 ;
fail_cond_st1 = omg1>0.04619989196 & omg1<=0.1847995678;
fail_cond_up1 = omg1>0.1847995678 & omg1<=0.2001995318;
fail_cond_st2 = omg1>0.2001995318 & omg1<=0.2155994958;
fail_cond_dn2 = omg1>0.2155994958 & omg1<=0.2309994598;
fail_cond_st3 = omg1>0.2309994598 & omg1<=0.3695991356;
fail_cond_up2 = omg1>0.3695991356 & omg1<=0.3849990996;
fail_cond_st4 = omg1>0.3849990996 & omg1<=0.4003990636;
fail_cond_dn3 = omg1>0.4003990636 & omg1<=0.4157990276;
fail_cond_st5 = omg1>0.4157990276 & omg1<=0.5543987034;
fail_cond_up3 = omg1>0.5543987034 & omg1<=0.5697986674;
fail_cond_st6 = omg1>0.5697986674 & omg1<=0.5851986314;
fail_cond_dn4 = omg1>0.5851986314 & omg1<=0.6005985954;
fail_cond_st7 = omg1>0.6005985954 & omg1<=0.7391982712;
fail_cond_up4 = omg1>0.7391982712 & omg1<=0.7853981634;
pf_dn1=(-21.64507226)*(omg1)+4;
pf_st1=3;
pf_up1=(27.92214318*(omg1))-2.159999994;
pf_st2=3.43 ;
pf_dn2=(-27.92214319)*(omg1)+9.449999994;
pf_st3=3;
pf_up2=(27.92214319*(omg1))-7.319999989;
pf_st4=3.43 ;
pf_dn3=(-27.92214319)*(omg1)+14.60999999;
pf_st5=3;
pf_up3=(27.92214319*(omg1))-12.47999998;
pf_st6=3.43 ;
pf_dn4=(-27.92214319)*(omg1)+19.76999998;
pf_st7=3;
pf_up4=(21.64507215*(omg1))-12.99999991;
S=p_up.*(safe_cond_up) + p_st .*(safe_cond_st) + p_dn.*(safe_cond_dn)+ p_msc.*(safe_cond_msc) ;
F= pf_dn1.*(fail_cond_dn1) + pf_st1 .*(fail_cond_st1) + pf_up1.*(fail_cond_up1)...
+ pf_st2 .*(fail_cond_st2) +pf_dn2.*(fail_cond_dn2)+ pf_st3 .*(fail_cond_st3)...
+ pf_up2.*(fail_cond_up2)+ pf_st4 .*(fail_cond_st4) +pf_dn3.*(fail_cond_dn3)+ pf_st5 .*(fail_cond_st5)...
+ pf_up3.*(fail_cond_up3)+ pf_st6 .*(fail_cond_st6) +pf_dn4.*(fail_cond_dn4)+ pf_st7 .*(fail_cond_st7)...
+pf_up4.*(fail_cond_up4);
I=S.*not(fail_cond)+ F.*(fail_cond) ;
end