fun7.1   declared root +0
   ours          returned x=+0.0248491106 after  11 evals  f(x)=+0.000e+00  |x-root|=0.0248  f IS ZERO THERE
   chandrupatla  returned x=-0.008282706312 after   8 evals  f(x)=-0.000e+00  |x-root|=0.00828  f IS ZERO THERE
   f is identically zero at least up to root + 0.0316
fun7.2   declared root +0
   ours          returned x=-0.02750094689 after  11 evals  f(x)=-0.000e+00  |x-root|=0.0275  f IS ZERO THERE
   chandrupatla  returned x=-0.00805799861 after   8 evals  f(x)=-0.000e+00  |x-root|=0.00806  f IS ZERO THERE
   f is identically zero at least up to root + 0.0316
fun7.3   declared root +0
   ours          returned x=+0.005929390833 after  11 evals  f(x)=+0.000e+00  |x-root|=0.00593  f IS ZERO THERE
   chandrupatla  returned x=-0.02563062503 after  11 evals  f(x)=-0.000e+00  |x-root|=0.0256  f IS ZERO THERE
   f is identically zero at least up to root + 0.0316
fun7.4   declared root +0
   ours          returned x=+0.01889661575 after  11 evals  f(x)=+0.000e+00  |x-root|=0.0189  f IS ZERO THERE
   chandrupatla  returned x=-0.001938145803 after  18 evals  f(x)=-0.000e+00  |x-root|=0.00194  f IS ZERO THERE
   f is identically zero at least up to root + 0.0316
fun7.5   declared root +0
   ours          returned x=+0.008107544271 after  13 evals  f(x)=+0.000e+00  |x-root|=0.00811  f IS ZERO THERE
   chandrupatla  returned x=+0.02036778628 after  19 evals  f(x)=+0.000e+00  |x-root|=0.0204  f IS ZERO THERE
   f is identically zero at least up to root + 0.0316