Difference between revisions of "Manuals/calci/PI"
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− | <div | + | <div style="font-size:30px">'''PI()'''</div><br/> |
+ | |||
+ | |||
+ | ==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 <math>\Pi</math>. | ||
+ | *<math>\Pi</math> is commonly defined as the ratio of a circle's circumference C to its diameter d. | ||
+ | *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. | ||
+ | *<math>\Pi</math> is a transcendental number and irrational number. | ||
+ | *Being an irrational number,<math>\Pi</math> 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== | ||
+ | #Pi()=3.141592653589793 | ||
+ | #Pi()/4=0.785398163 | ||
+ | #Pi()/180=0.017453293 | ||
+ | #Pi()/(22/7)=0.999597663 | ||
+ | #Pi()*(5^2)=78.53981634(Area of circle with r=5) | ||
+ | #2*Pi()*5=31.41592654(Circumference of a cidcle with r=5). | ||
+ | |||
+ | ==See Also== | ||
+ | *[[Manuals/calci/SIN | SIN ]] | ||
+ | *[[Manuals/calci/COS | COS ]] | ||
+ | *[[Manuals/calci/TAN |TAN ]] | ||
+ | |||
+ | ==References== | ||
+ | |||
+ | |||
Syntax | Syntax | ||
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Lets see an example | Lets see an example | ||
− | + | 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
- Pi()=3.141592653589793
- Pi()/4=0.785398163
- Pi()/180=0.017453293
- Pi()/(22/7)=0.999597663
- Pi()*(5^2)=78.53981634(Area of circle with r=5)
- 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 |