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PI()

Overview

PI() returns the mathematical constant π (pi), which is the ratio of a circle's circumference to its diameter. This function is useful for geometric calculations, trigonometric functions, and any mathematical operations requiring the value of π.

Function Format

PI()

Return Value

PI() returns a numeric value (approximately 3.14159265)

Examples

PI() = 3.14159265                    (basic usage)
PI() * 2 = 6.28318530               (circumference of unit circle)
PI() * 5^2 = 78.53981625            (area of circle with radius 5)
PI() / 2 = 1.57079633               (90 degrees in radians)
ROUND(PI(), 2) = 3.14               (rounded to 2 decimal places)

Notes

• Important behaviors:
  • Returns a constant value
  • No parameters required
  • High precision approximation
  • Always returns the same value
  • Can be used in calculations
• Common use cases include:
  • Circle calculations
  • Trigonometric functions
  • Geometric formulas
  • Scientific calculations
  • Engineering computations
• The function can be used in:
  • Mathematical expressions
  • Geometric formulas
  • Trigonometric calculations
  • Scientific computations
• This function is often used in combination with other mathematical functions for complex calculations.
• For other mathematical constants, use appropriate mathematical functions or literals.

See Also

• ROUND()
• SIN()
• COS()
• TAN()