x1=0.1;
x2=0.0;
match,use_macro;
vary,name=x1;
vary,name=x2;
m1: macro={;};
constraint,expr= x1+3*x2=1;
constraint,expr= x1+1*x2=1;
jacobian,calls=20,tolerance=1.e-21;
endmatch;


x1=0.1;
x2=0.0;
match,use_macro;
vary,name=x1,knob=knob1;
vary,name=x2,knob=knob2;
m1: macro={;};
constraint,expr= x1+3*x2=1;
constraint,expr= x1+1*x2=1;
jacobian,calls=20,tolerance=1.e-21;
endmatch,knobfile="knobfile.out";