Formulas and Functions
PI
The PI function returns the approximate value of π (pi), the ratio of a circle’s circumference to its diameter.
PI()
Notes
The PI function does not have any arguments. However, you must include the parentheses.
The PI function is accurate to 15 decimal places.
Examples |
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=PI() returns approximately 3.14159265358979. =SIN(PI()/2) returns 1, the sine of π/2 radians or 90 degrees. |
See alsoSQRTPI