Merge branch 'master' of github.com:perl6/doc

lib/Language/control.pod

@@ -100,17 +100,15 @@ instead the C<{> and C<}> around the block are mandatory:
 
 There is also a form of C<if> called a "statement modifier" form.  In this
 case, the if and then the condition come after the code you want to run
-conditionally.  Also, you should not use the C<{> and C<}>.  Do note that the
-condition is still always evaluated first:
+conditionally.  Do note that the condition is still always evaluated first:
 
     43.say if 42.say and 0;     # says "42" but does not say "43"
     43.say if 42.say and 1;     # says "42" and then says "43"
     say "It is easier to read code when 'if's are kept on left of screen"
         if True;                # says the above, because it is true
-    { 43.say } if True;         # creates a closure, does not run it
+    { 43.say } if True;         # says "43" as well
 
-The last case is one reason why we have the L<do> keyword.  The statement
-modifier form is probably best used sparingly.
+The statement modifier form is probably best used sparingly.
 
 The C<if> statement itself will either return an empty list, if it does not
 run the block, or it will return the value which the block produces:

lib/Type/Cool.pod

@@ -211,7 +211,7 @@ radians.
 =head2 routine tan
 
     method tan()
-    sub acos(Numeric(Cool))
+    sub tan(Numeric(Cool))
 
 Coerces the invocant (or in sub form, the argument) to L<Numeric|/type/Numeric>, interprets it as radians,
 returns its L<tangens|https://en.wikipedia.org/wiki/Tangent>.
@@ -274,7 +274,7 @@ radians.
 =head2 routine cotan
 
     method cotan()
-    sub cotangens(Numeric(Cool))
+    sub cotan(Numeric(Cool))
 
 Coerces the invocant (or in sub form, its argument) to L<Numeric|/type/Numeric>, interprets it as radians,
 returns its L<cotangens|https://en.wikipedia.org/wiki/Trigonometric_functions#Reciprocal_functions>,