Program name : '=script='  ('=bin=')

   Function : generating Gaussian random variables by Box-Muller method.

   Output to STDOUT :  
      1. The generated Gaussian random number(s).

   Output to STDERR : 
      2. The random seed used. 
      3. The sums of the generated numbers and the square of them.

   Options : 
     -m N : Mean. Default is 0.
     -d N : Standard Deviation. Default is 1.
     -v N : Variance. Default is 1. -d is given more priority.
     -. N : The decimal places after the decimal point.

     -g N : How many numbers you need. Default : 6
     -s N : Random seed specification. Seemingly the residual divided by 2^32 is essential.
     -1   : Only output the random number without other secondary information.
     -:   ; Entail serial number from 1. 

    --help : Print this online help manual of this command "'=SCRIPT='". Similar to "perldoc `which [-t] '=SCRIPT='` ".
    --help opt ..or..  --help options : Only shows the option helps. It is easy to read when you are in very necessary.
    --help ja : Shows Japanese online help manual. ; "'=script=' --help ja" で日本語のオンラインマニュアルを表示します。
    --help nopod : Print this online manual using the code insdide this program without using the function of Perl POD.