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Length: 1536 (0x600) Types: TextFile Names: »tmin1a«
└─⟦00964e8f7⟧ Bits:30007478 RC8000 Dump tape fra HCØ. └─⟦b2ec5d50f⟧ └─⟦09b4e9619⟧ »thcømat« └─⟦this⟧
\f message min1a min1a=algol message.no external real procedure min1a(f,x,step1,eps,minstep,d2); value eps,minstep; real f,x,step1,eps,minstep,d2; begin real q0,q1,q2,x0,q,stepp; stepp:=step1; if abs(stepp)<2*minstep then stepp:=2*minstep; if eps<0 then eps:=0; q0:=f; x0:=x; x:=x0+stepp; q1:=f; if q1>q0 then begin stepp:=-stepp; q2:=q1; x:=x0+stepp; q1:=f; end; if q1<q0 then begin x0:=x; q2:=q0; q0:=q1; x:=x0+stepp; for q1:=f while q1<q0 do begin q0:=q1; x0:=x; stepp:=stepp*2; x:=x0+stepp end end; for stepp:=0.5*stepp while abs(stepp)>=minstep and (q1+q2-2*q0)*3>(abs(q1)+abs(q2)+abs(q0))*eps do begin if q1>q2 then begin stepp:=-stepp; q:=q1; q1:=q2; q2:=q end; x:=x0+stepp; q:=f; if q>=q0 then begin stepp:=-stepp; q1:=q2; q2:=q; x:=x0+stepp; q:=f end; if q<q0 then begin x0:=x; q2:=q0; q0:=q end else q1:=q end; min1a:=q0; x:=x0; step1:=stepp; d2:=(if abs stepp>2'-309 then (q2+q1-2*q0)/(2*stepp)**2 else -1); end min1a ; end ▶EOF◀