Data update

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

@@ -1,19 +0,0 @@
->>> 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

@@ -1,17 +0,0 @@
->>> 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
->>>

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

@@ -0,0 +1,16 @@
+from fractions import Fraction
+
+def map_range(a, b, s):
+    (a1, a2), (b1, b2) = a, b
+    return b1 + ((s - a1) * (b2 - b1) / (a2 - a1))
+
+for s in range(11):
+    print(f"{s:2g} maps to {map_range((0, 10), (-1, 0), s):g}")
+
+print()
+
+# Because of Python's strict, dynamic typing rules for numbers, the same
+# function can give answers as fractions.
+
+for s in range(11):
+    print(f"{s:2g} maps to {map_range((0, 10), (-1, 0), Fraction(s))}")