List of bracket() Examples

Examples of bracket()

com.nr.min.Bracketmethod.bracket()
Given a function or functor func, and given distinct initial points ax and bx, this routine searches in the downhill direction (defined by the function as evaluated at the initial points) and returns new points ax, bx, cx that bracket a minimum of the function. Also returned are the function values at the three points, fa, fb, and fc. @param a @param b @param func
com.nr.min.Brent.bracket()
com.nr.min.Dbrent.bracket()
com.nr.min.Golden.bracket()

Examples of com.nr.min.Bracketmethod.bracket()

    Ran myran=new Ran(17);
    Bracketmethod br = new Bracketmethod();
    for (i=0;i<N;i++) {
      a=50.0*myran.doub();
      b=a+span;
      br.bracket(a,b,this);
//      System.out.printf(br.ax << " " << br.bx << " " << br.cx);
//      System.out.printf(br.fa << " " << br.fb << " " << br.fc << endl);
      localflag = localflag || (br.fa < br.fb) || (br.fc < br.fb);
    }
    globalflag = globalflag || localflag;

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Examples of com.nr.min.Bracketmethod.bracket()


    double sbeps=3.e-16;
    for (i=0;i<N;i++) {
      a=50.0*myran.doub();
      b=a+span;
      br.bracket(a,b,this);
      localflag = localflag || abs(br.fa - funk(br.ax))>sbeps 
        || abs(br.fb - funk(br.bx))>sbeps
        || abs(br.fc - funk(br.cx))>sbeps;
    }
    globalflag = globalflag || localflag;

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Examples of com.nr.min.Brent.bracket()


    Brent br = new Brent();
    for (i=0;i<N;i++) {
      a=i;
      b=a+span;
      br.bracket(a,b,this);
      min=br.minimize(this);    // Minimum of bessj0
      localflag = localflag || (abs(Bessj1_Brent(min)) > sbeps);
    }


    globalflag = globalflag || localflag;

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Examples of com.nr.min.Brent.bracket()

    ang[1]=atan(b);
    ang[3]=0.0;
    ang[4]=ang[1];
    ang[5]=POTN;
    for (j=3;j<6;j++) ch[j]=chixy.get(ang[j]);
    brent.bracket(ang[0],ang[1],chixy);
    ang[0] = brent.ax; ang[1] = brent.bx; ang[2] = brent.cx;
    ch[0]  = brent.fa; ch[1]  = brent.fb; ch[2]  = brent.fc;
    b = brent.minimize(chixy);
    chi2=chixy.get(b);
    a=aa;

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Examples of com.nr.min.Dbrent.bracket()

    Funcd_Dbrent funcd = new Funcd_Dbrent();
    Dbrent dbr = new Dbrent();
    for (i=0;i<N;i++) {
      a=i;
      b=a+span;
      dbr.bracket(a,b,funcd);
      min=dbr.minimize(funcd);    // Minimum of bessj0
      localflag = localflag || (abs(funcd.df(min)) > sbeps);
    }


    globalflag = globalflag || localflag;

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Examples of com.nr.min.Golden.bracket()


    Golden gold = new Golden();
    for (i=0;i<N;i++) {
      a=i;
      b=a+span;
      gold.bracket(a,b,this);
      min=gold.minimize(this);   // Minimum of bessj0
      localflag = localflag || (abs(Bessj1_Golden(min)) > sbeps);
    }


    globalflag = globalflag || localflag;

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