Manuals/calci/PI

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PI()


Description

  • This function gives the value of .
  • The is a mathematical constant with a value approximate to 3.14159.
  • It is denoted by the Greek letter .
  • is commonly defined as the ratio of a circle's circumference to its diameter .
  • So , the ratio is constant, and it is not considering the circle's size.
  • is a transcendental number and irrational number.
  • Being an irrational number, cannot be expressed exactly as a ratio of any two integers .
  • But we can express as the fraction is approximate to the value , also no fraction can be its exact value.

Examples

  1. =PI() = 3.141592653589793
  2. =PI()/4 = 0.785398163
  3. =PI()/180 = 0.017453293
  4. =PI()/(22/7) = 0.999597663
  5. =PI()*(5^2) = 78.53981634(Area of circle with r=5)
  6. =2*PI()*5 = 31.41592654(Circumference of a circle with r=5).

Related Videos

PI

See Also

References

Pi