CENTER(<C string>, <N width in which to center string>)
 Centers output without calculating its start position.
 Returns <expC> of <string> with leading blanks added to center in <width>.

 When used with the @...SAY command, the column number
 should always be zero.

 * Column is zero, <width> is screen size
 @ ROW(), 0 SAY CENTER("Hello, world!", 80)

 * Column is zero, <width> is printer form size
 @ PROW(), 0 SAY CENTER("Hello, world!", 132)

 * Unformatted output, <width> is screen size
 ? CENTER( STR(123.45, 6, 2), 80 )


             Placed in the Public Domain by Tom Rettig Assoc.