Difference between revisions of "Manuals/calci/COMBIN"

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*<math>Number</math> is the number of items.
 
*<math>Number</math> is the number of items.
−
*<math>Numberchosen</math> is the  number of items in each arrangement.  
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*<math>NumberChosen</math> is the  number of items in each arrangement.
 +
**COMBIN() returns the number of combinations for a given number of objects.  
  
 
==Description==
 
==Description==
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*If the order is not a matter, it is a Combination.  
 
*If the order is not a matter, it is a Combination.  
 
*If the order is a matter it is a Permutation.
 
*If the order is a matter it is a Permutation.
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*A combination is denoted by nCr or <math>\binom{n}{r}</math> or <math>C(n,r)</math>.  
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*A combination is denoted by <math>^nC_r</math> or <math>\binom{n}{r}</math> or <math>C(n,r)</math>.  
 
*A formula for the number of possible combinations of <math>r</math> objects from a set of <math>n</math> objects is:
 
*A formula for the number of possible combinations of <math>r</math> objects from a set of <math>n</math> objects is:
 
  <math>\binom{n}{r}=\frac{n!}{r!(n-r)!}</math>  
 
  <math>\binom{n}{r}=\frac{n!}{r!(n-r)!}</math>  
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#The <math>n</math> & <math>r</math> are non numeric
 
#The <math>n</math> & <math>r</math> are non numeric
 
#The <math>n</math> & <math>r < 0 </math> or <math>n < r</math>
 
#The <math>n</math> & <math>r < 0 </math> or <math>n < r</math>
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*When we are giving the <math>n</math> & <math>r</math> values in decimals, it will automatically convert into Integers.
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*When we are giving the <math>n</math> & <math>r</math> values in decimals, it will truncated into Integers.
 
*For e.g.
 
*For e.g.
 
**COMBIN(5.4,2)=10 is equivalent to COMBIN(5,2)
 
**COMBIN(5.4,2)=10 is equivalent to COMBIN(5,2)
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**COMBIN(5,-2)=NAN, because <math>r</math> is negative.
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**COMBIN(5,-2)=#N/A (NUMBERCHOSEN > 0), because <math>r</math> is negative.
  
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==ZOS Section==
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==ZOS==
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{{#ev:youtube|4AQx4Hnctcw|400|right|Combination}}
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*The syntax is to calculate COMBIN in ZOS is <math>COMBIN(Number,NumberChosen)</math>
−
*The syntax is to calculate COMBIN in ZOS is COMBIN(Number,Numberchosen)
 
 
**<math>Number</math> is the number of items.
 
**<math>Number</math> is the number of items.
−
**<math>Numberchosen</math> is the  number of items in each arrangement.
+
**<math>NumberChosen</math> is the  number of items in each arrangement.
 
**For e.g.,COMBIN(20..23,6..7)
 
**For e.g.,COMBIN(20..23,6..7)
 
**COMBIN(4,2)*COMBIN(10,5)
 
**COMBIN(4,2)*COMBIN(10,5)
 +
**COMBIN(12.3,3) gives 220, though COMBIN(12.3d,3n) gives 238.5995. Here, the use of higher number types (like big number, decimal, etc.) different logic is triggered. In base plain numbers and Number objects, the numbers are truncated.
 +
 +
{{#ev:youtube|cQXPq6y8bOw|280|center|Combin}}
  
 
==Examples==
 
==Examples==
 
{| id="TABLE3" class="SpreadSheet blue"
 
{| id="TABLE3" class="SpreadSheet blue"
 
|- class="even"
 
|- class="even"
−
| COMBIN(n,r)
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| COMBIN(Number,NumberChosen)
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! n
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! Number
−
! r
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! Numberchosen
 
! RESULT
 
! RESULT
 
|-
 
|-
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|1
 
|1
 
|}
 
|}
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a=34!C!3
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5984
 +
 +
COMBIN(PERMUT(34, 3n), 3) (For Big Integer) OR a=34n!P!3!C!3 = 7713313203904
 +
 +
==Related Videos==
 +
 +
{{#ev:youtube|Bzuj8ItKT5w|280|center|COMBIN}}
  
 
==See Also==
 
==See Also==
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==References==
 
==References==
 
[http://en.wikipedia.org/wiki/Combination  Combination]
 
[http://en.wikipedia.org/wiki/Combination  Combination]
 +
 +
 +
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*[[Z_API_Functions | List of Main Z Functions]]
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*[[ Z3 |  Z3 home ]]

Latest revision as of 03:18, 24 February 2022

COMBIN(Number,Numberchosen)


  • is the number of items.
  • is the number of items in each arrangement.
    • COMBIN() returns the number of combinations for a given number of objects.

Description

  • This function gives the combination of the given number of objects.
  • Let Number be "n" and Number chosen be "r".
  • So the Combinations is an arrangement of objects without any repetition, selected from different objects is called a combination of objects taken at a time.
  • For example consider three colors, like Blue,Yellow,Pink.There are three combinations of two can be drawn from the set:Blue and Yellow,Blue and Pink,or Yellow and Pink.
  • If the order is not a matter, it is a Combination.
  • If the order is a matter it is a Permutation.
  • A combination is denoted by or or .
  • A formula for the number of possible combinations of objects from a set of objects is:

where & .

  • This function will give Error Result when
  1. The & are non numeric
  2. The & or
  • When we are giving the & values in decimals, it will truncated into Integers.
  • For e.g.
    • COMBIN(5.4,2)=10 is equivalent to COMBIN(5,2)
    • COMBIN(5,-2)=#N/A (NUMBERCHOSEN > 0), because is negative.

ZOS

  • The syntax is to calculate COMBIN in ZOS is
    • is the number of items.
    • is the number of items in each arrangement.
    • For e.g.,COMBIN(20..23,6..7)
    • COMBIN(4,2)*COMBIN(10,5)
    • COMBIN(12.3,3) gives 220, though COMBIN(12.3d,3n) gives 238.5995. Here, the use of higher number types (like big number, decimal, etc.) different logic is triggered. In base plain numbers and Number objects, the numbers are truncated.
Combin

Examples

COMBIN(Number,NumberChosen) Number Numberchosen RESULT
COMBIN(12,3) 12 3 220
COMBIN(4,4) 4 4 1
COMBIN(4,0) 4 0 1 
a=34!C!3 
5984

COMBIN(PERMUT(34, 3n), 3) (For Big Integer) OR a=34n!P!3!C!3 = 7713313203904

Related Videos

COMBIN

See Also

References

Combination


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