Pops X and uses it to set the spacing value. The SRN command stores the integer portion of the absolute value of X into the seed of the random number generator. As random numbers are generated an 80 bit random integer is kept and used as the basis for the next random number. The value can be recorded using the RRN command at the end of a session and reentered with the SRN command at the beginning of a new session. This will prevent the same random number from ever being reused.
X remains unchanged.
The ST command will set the number of bytes to truncate for display to the current value of X, and then X is popped off the stack. If the number of digits to display, set by the SD command is larger than the accuracy implied by the number of bytes set by the SM command minus the number of bytes set by the ST command, the smaller value will be used to determine the number of digits to display. This page accessed times since June 7, 1997.