e.bf

# This program computes e.

# from: http://brainfuck.org/
# This program computes the transcendental number e, in decimal. Because this is
# infinitely long, this program doesn't terminate on its own; you will have to
# kill it. The fact that it doesn't output any linefeeds may also give certain
# implementations trouble, including some of mine.
# (c) 2016 Daniel B. Cristofani

>>>>++>+>++>+>>++<+[  
  [>[>>[>>>>]<<<<[[>>>>+<<<<-]<<<<]>>>>>>]+<]>-
  >>--[+[+++<<<<--]++>>>>--]+[>>>>]<<<<[<<+<+<]<<[
    >>>>>>[[<<<<+>>>>-]>>>>]<<<<<<<<[<<<<]
    >>-[<<+>>-]+<<[->>>>[-[+>>>>-]-<<-[>>>>-]++>>+[-<<<<+]+>>>>]<<<<[<<<<]]
    >[-[<+>-]]+<[->>>>[-[+>>>>-]-<<<-[>>>>-]++>>>+[-<<<<+]+>>>>]<<<<[<<<<]]<<
  ]>>>+[>>>>]-[+<<<<--]++[<<<<]>>>+[
    >-[
      >>[--[++>>+>>--]-<[-[-[+++<<<<-]+>>>>-]]++>+[-<<<<+]++>>+>>]
      <<[>[<-<<<]+<]>->>>
    ]+>[>>>>]-[+<<<<--]++<[
      [>>>>]<<<<[
        -[+>[<->-]++<[[>-<-]++[<<<<]+>>+>>-]++<<<<-]
        >-[+[<+[<<<<]>]<+>]+<[->->>>[-]]+<<<<
      ]
    ]>[<<<<]>[
      -[
        -[
          +++++[>++++++++<-]>-.>>>-[<<<----.<]<[<<]>>[-]>->>+[
            [>>>>]+[-[->>>>+>>>>>>>>-[-[+++<<<<[-]]+>>>>-]++[<<<<]]+<<<<]>>>
          ]+<+<<
        ]>[
          -[
            ->[--[++>>>>--]->[-[-[+++<<<<-]+>>>>-]]++<+[-<<<<+]++>>>>]
            <<<<[>[<<<<]+<]>->>
          ]<
        ]>>>>[--[++>>>>--]-<--[+++>>>>--]+>+[-<<<<+]++>>>>]<<<<<[<<<<]<
      ]>[>+<<++<]<
    ]>[+>[--[++>>>>--]->--[+++>>>>--]+<+[-<<<<+]++>>>>]<<<[<<<<]]>>
  ]>
]