A-M baby

Task/Map-range/Python/map-range-1.py

@@ -0,0 +1,19 @@
+>>> def maprange( a, b, s):
+	(a1, a2), (b1, b2) = a, b
+	return  b1 + ((s - a1) * (b2 - b1) / (a2 - a1))
+
+>>> for s in range(11):
+	print("%2g maps to %g" % (s, maprange( (0, 10), (-1, 0), s)))
+
+	
+ 0 maps to -1
+ 1 maps to -0.9
+ 2 maps to -0.8
+ 3 maps to -0.7
+ 4 maps to -0.6
+ 5 maps to -0.5
+ 6 maps to -0.4
+ 7 maps to -0.3
+ 8 maps to -0.2
+ 9 maps to -0.1
+10 maps to 0

Task/Map-range/Python/map-range-2.py

@@ -0,0 +1,17 @@
+>>> from fractions import Fraction
+>>> for s in range(11):
+	print("%2g maps to %s" % (s, maprange( (0, 10), (-1, 0), Fraction(s))))
+
+	
+ 0 maps to -1
+ 1 maps to -9/10
+ 2 maps to -4/5
+ 3 maps to -7/10
+ 4 maps to -3/5
+ 5 maps to -1/2
+ 6 maps to -2/5
+ 7 maps to -3/10
+ 8 maps to -1/5
+ 9 maps to -1/10
+10 maps to 0
+>>>