# The bare constants bear

```All sounds good up to:

Larry Wall wrote:```
```
```
```The cultural ambiguity is also being reduced insofar as we're trying
to discourage use of bare constants in favor of sigilled constants.
If you see a bare function name you should generally assume it
has arguments in Perl 6.
```
```
Well, in that case, should pi, e, et al. become \$pi, \$e, @et al.? ;)

```
Seriously, though, I think we discussed this before, and we kept those constants as bare, but if there's a cultural shift, then those would probably be its poster-children. I'm also in favor of the \$π type Unicode equivalents for uniformity. Boolean constants are more questionable, as is the zeroary undef, which is pretty hard-coded in the brain of the average Perl programmer.
```
Right now, in the Math::Basic API doc, we have:

------------------------

To export the constants provided by C<Math::Basic> use the C<:constants>
tag when importing:

use Math::Basic :constants;

=over

=item e

constant Num Math::Basic::e

The constant C<e>, roughly equal to C<2.71828182845905>.

=item euler_constant

constant Num Math::Basic::γ
constant Num Math::Basic::euler_constant

The Euler constant (or Euler-Mascheroni constant or simply γ), roughly
equal to C<0.57721566490153286>. This constant should not be confused
with C<e>.

=item golden_ratio

constant Num Math::Basic::φ
constant Num Math::Basic::phi
constant Num Math::Basic::golden_ratio

The golden ratio, roughly equal to C<1.6180339887498948>.

=item i

constant Complex Math::Basic::i

The constant C<i>, which is defined as the square root of C<-1>.

=item one

constant Complex Math::Basic::one

The constant value C<1>.

=item pi

constant Num Math::Basic::π
constant Num Math::Basic::pi

The constant C<pi>, roughly equal to C<3.14159265358979>.

=item zero

constant Complex Math::Basic::zero

The constant value C<0>.

=back

------------------------

Yes, I've spotted the bug in one and zero being complex for no good reason.

```
If you think that we should change to sigiled constants, then I will make it:
```
------------------------

To export the constants provided by C<Math::Basic> use the C<:constants>
tag when importing:

use Math::Basic :constants;

=over

=item \$e

constant Num \$Math::Basic::e

The constant C<e>, roughly equal to C<2.71828182845905>.

=item \$euler_constant

constant Num \$Math::Basic::γ
constant Num \$Math::Basic::euler_constant

The Euler constant (or Euler-Mascheroni constant or simply γ), roughly
equal to C<0.57721566490153286>. This constant should not be confused
with C<e>.

=item \$golden_ratio

constant Num \$Math::Basic::φ
constant Num \$Math::Basic::phi
constant Num \$Math::Basic::golden_ratio

The golden ratio, roughly equal to C<1.6180339887498948>.

=item \$i

constant Complex \$Math::Basic::i

The constant C<i>, which is defined as the square root of C<-1>.

=item \$one

constant Int \$Math::Basic::one

The constant value C<1>.

=item \$pi

constant Num \$Math::Basic::π
constant Num \$Math::Basic::pi

The constant C<pi>, roughly equal to C<3.14159265358979>.

=item \$zero

constant Int \$Math::Basic::zero

The constant value C<0>.

=back

------------------------

```