Question

This ruby code generates a pyramid:

w = 20
1.upto(w) { |i| puts ">"+" "*(w-i)+"."*i*2+" "*(w-i)+"<" }

Like so:

>                   ..                   <
>                  ....                  <
>                 ......                 <
>                ........                <
>               ..........               <
>              ............              <
>             ..............             <
>            ................            <
>           ..................           <
>          ....................          <
>         ......................         <
>        ........................        <
>       ..........................       <
>      ............................      <
>     ..............................     <
>    ................................    <
>   ..................................   <
>  ....................................  <
> ...................................... <
>........................................<

I want to make the pyramid have one dot at the top instead of two (currently because of "."*i*2 to make it symmetrical).

How can I achieve this?

Answer 1

w=20; 1.upto(w) { |i| puts ">"+" "*(w-i)+"."*(i*2-1)+" "*(w-i)+"<" }