A friend of mine runs a pharmacy.   He has a specialized function in his Dispensary application which receives a decimal value of currency and replaces it to a standard value.   This value is regulated by a government department.



Task

Given a floating point value between   0.00   and   1.00,   rescale according to the following table:

>=  0.00  <  0.06  :=  0.10
>=  0.06  <  0.11  :=  0.18
>=  0.11  <  0.16  :=  0.26
>=  0.16  <  0.21  :=  0.32
>=  0.21  <  0.26  :=  0.38
>=  0.26  <  0.31  :=  0.44
>=  0.31  <  0.36  :=  0.50
>=  0.36  <  0.41  :=  0.54
>=  0.41  <  0.46  :=  0.58
>=  0.46  <  0.51  :=  0.62
>=  0.51  <  0.56  :=  0.66
>=  0.56  <  0.61  :=  0.70
>=  0.61  <  0.66  :=  0.74
>=  0.66  <  0.71  :=  0.78
>=  0.71  <  0.76  :=  0.82
>=  0.76  <  0.81  :=  0.86
>=  0.81  <  0.86  :=  0.90
>=  0.86  <  0.91  :=  0.94
>=  0.91  <  0.96  :=  0.98
>=  0.96  <  1.01  :=  1.00



[ $ 'bigrat.qky' loadfile ] now!
 
[ 2over 2over v< if 2swap 2drop ] is vmax  ( n/d n/d --> n/d )
 
[ 100 1 v* 1 1 v-
  0 1 vmax 5 1 v/ /
  [ table
    10 18 26 32 38
    44 50 54 58 62
    66 70 74 78 82
    86 90 94 98 100 ] 100 ]       is scale ( n/d     --> n/d )
 
[ swap echo sp echo ]             is br    ( n/d     -->     )
 
[ 2dup br say ' --> '
  scale br cr ]                   is test  ( n/d     -->     )
 
0 100 test
50 100 test
65 100 test
66 100 test
100 100 test
7368 10000 test
 
( Show how to enter and display results as a decimal too. )
$ '0.7368' dup echo$
say ' --> '
$->v drop scale
2 point$ echo$