PI real-valued function PI real-valued function Syntax PI Function Return the value of the mathematical constant pi (3.141593). NOTE: TYPE, PROMPT, and similar instructions display the result of the above example as a single-precision value. However, pi is actually stored and manipulated as a double- precision value. The LISTR monitor command displays real values to full precision. Usage Considerations The word "pi" cannot be used as a program name or variable name. eV+Language Reference Guide, v2.x, 18319-000 Rev A Page 400