Difference between revisions of "Manuals/calci/PI"

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<div style="font-size:30px">'''PI()'''</div><br/>
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==Description==
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*This function gives the value of pi.
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*The pi is a mathematical constant with a value approximate to 3.14159.
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*It is denoted by the Greek letter <math>\Pi</math>.
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*<math>\Pi</math>  is commonly defined as the ratio of a circle's circumference C to its diameter d.
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*So <math>\Pi =\frac {C}{d}</math>, the ratio <math> \frac {C}{d}</math>  is constant, and it is not considering the circle's size.
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*<math>\Pi</math>  is a transcendental number and irrational number.
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*Being an irrational number,<math>\Pi</math>  cannot be expressed exactly as a ratio of any two integers .
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* But we can express as the fraction <math>\frac {22}{7} is approximate to the  π value , also no fraction can be its exact value.
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==Examples==
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#Pi()=3.141592653589793
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#Pi()/4=0.785398163
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#Pi()/180=0.017453293
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#Pi()/(22/7)=0.999597663
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#Pi()*(5^2)=78.53981634(Area of circle with r=5)
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#2*Pi()*5=31.41592654(Circumference of a cidcle with r=5).
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==See Also==
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*[[Manuals/calci/SIN  | SIN  ]]
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*[[Manuals/calci/COS  | COS ]]
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*[[Manuals/calci/TAN  |TAN  ]]
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==References==
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Syntax
 
Syntax
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Lets see an example
 
Lets see an example
  
<nowiki>=PI () is 3.14</nowiki>
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UNIQ9a8ffac247c60f4e-nowiki-00000002-QINU
  
 
and,  =PI ()/3 is 1.0472
 
and,  =PI ()/3 is 1.0472

Revision as of 03:02, 6 January 2014

PI()



Description

  • This function gives the value of pi.
  • The pi 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 C to its diameter d.
  • 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 <math>\frac {22}{7} is approximate to the π 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 cidcle with r=5).

See Also

References

Syntax


Examples


'''''''  ''''

Description


PI


PI ( )




It calculates a mathematical constant pi which is equal to 3.14159265358979




 

Lets see an example

?UNIQ9a8ffac247c60f4e-nowiki-00000002-QINU?

and,  =PI ()/3 is 1.0472


Column1 Column2 Column3 Column4
Row1 3.1416 1.0472
Row2
Row3
Row4
Row5
Row6