PUNCT

 

  .   Decimal point. 325/100, 3.25 and .325e1 are all the same.

 

 

   .   Array operations.  Element-by-element multiplicative operations

       are obtained using .* , .^ , ./ , .\ or .'.  For example,

       C = A ./ B is the matrix with elements c(i,j) = a(i,j)/b(i,j).

 

 

   ..  Parent directory.  See CDM9OCU2 or CHDIR.

 

 

   ... Continuation.  Three or more decimal points at the end of

       a line causes the following line to be a continuation.

 

 

   ,   Comma.  The comma is used to separate matrix subscripts

       and arguments to functions.  It is also used to separate

       statements in multi-statement lines. In this situation,

       it may be replaced by a semicolon to suppress printing.

 

 

   ;   Semicolon.  The semicolon is used inside brackets to indicate

       the ends of the rows of a matrix.  It is also used after an

       expression or statement to suppress printing.

 

 

   %   Percent.  The percent symbol is used to begin comments.

       Logically, it serves as an end-of-line character.  Any

       following text on the line is ignored or printed by the

       HELP10NXOU2 system.

 

 

   !   Exclamation point.  Any text following the '!' is issued

       as a command to the underlying computer operating system.

       (not available on Macintosh).

 

 

   '   Transpose.   X' is the complex conjugate transpose of X. 

       X.' is the non-conjugate transpose.

 

 

   '   Quote. 'ANYMJZXU2 TEXT1FO9SU2' is a vector whose components are the

       ASCII codes for the characters. A quote within the text

       is indicated by two quotes.  For example: 'Don''t forget.'

 

 

   =   Assignment.  B = A stores the elements of A in B.

 

 

       See also RELOP2HFK0Q8.