Data update

Task/Literals-Floating-point/Quackery/literals-floating-point.quackery

@@ -0,0 +1,21 @@
+  [ $ \
+try:
+    float(string_from_stack())
+except:
+    to_stack(False)
+else:
+    to_stack(True)
+ \ python ]                                      is isfloat (   $ -->   b )
+
+ [ nextword
+   dup isfloat not if
+     [ $ '"f" needs to be followed by a number.'
+       message put bail ]
+   ' [ ' ] swap nested join
+   nested swap dip join ]                    builds f       ( [ $ --> [ $ )
+
+  [ $ \
+import math
+a = string_from_stack()
+a = str(math.sin(float(a)))
+string_to_stack(a) \ python ]                    is sin     (   $ -->   $ )