Data commit

Task/Extreme-floating-point-values/Python/extreme-floating-point-values-1.py

@@ -0,0 +1,42 @@
+>>> # Extreme values from expressions
+>>> inf = 1e234 * 1e234
+>>> _inf = 1e234 * -1e234
+>>> _zero = 1 / _inf
+>>> nan = inf + _inf
+>>> inf, _inf, _zero, nan
+(inf, -inf, -0.0, nan)
+>>> # Print
+>>> for value in (inf, _inf, _zero, nan): print (value)
+
+inf
+-inf
+-0.0
+nan
+>>> # Extreme values from other means
+>>> float('nan')
+nan
+>>> float('inf')
+inf
+>>> float('-inf')
+-inf
+>>> -0.
+-0.0
+>>> # Some arithmetic
+>>> nan == nan
+False
+>>> nan is nan
+True
+>>> 0. == -0.
+True
+>>> 0. is -0.
+False
+>>> inf + _inf
+nan
+>>> 0.0 * nan
+nan
+>>> nan * 0.0
+nan
+>>> 0.0 * inf
+nan
+>>> inf * 0.0
+nan

Task/Extreme-floating-point-values/Python/extreme-floating-point-values-2.py

@@ -0,0 +1,8 @@
+>>> # But note!
+>>> 1 / -0.0
+
+Traceback (most recent call last):
+  File "<pyshell#106>", line 1, in <module>
+    1 / -0.0
+ZeroDivisionError: float division by zero
+>>> # (Not minus infinity)