π
Synopsis
Push the symbolic constant 'π' on the stack
Stack Diagram
| Input Stack | Output Stack | |
|---|---|---|
| → | Cπ | |
| Level 1 / Argument 1 | → | Level 1 |
| Keyword type | Analytic Function | |
| Parallel list processing capabilities | Group 1 | Commands that cannot parallel process |
| Affected by flags | None | |
Description
The π function pushes on the stack a symbolic representation of the constant $π$.
Application of the →NUM operator returns its closest approximation to 2000-digits accuracy, irrespective of the numeric precision defined by SETPREC. This is done to ensure maximum accuracy if the symbolic expression is ultimately converted to a real number.
Compatibility
π is not fully equivalent to its userRPL counterpart.
In particular:
- userRPL returns the closest approximation of $π$ to 12-digits accuracy.
Usage
Input
« 6 SETPREC π →NUM DUP 1 * »
Output
4:
3:
2: 3.14159265359.
1: 3.14159.
…………………………………………………………………………………………………………