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Two reasons: They're often quicker to use and they make for a great filing system.
1) Speed - Suppose I had a set of objects {n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, n17, n18} that I wanted you to add up, but I wanted you to show your work. Would you rather write this down:
n1 + n2 + n3 + n4 + n5 + n6 + n7 + n8 + n9 + n10 + n11 + n12 + n13 + n14 + n15 + n16 + n17 + n18,
or an equivalent expression, using indexes, like this:
∑(ni, i, 1, 18)?
2) Filing - Suppose I had a 6 X 6 matrix, or array, and I wanted to talk about one specific element in it. If I hadn't done the proper filing, I would be fumbling for words in an effort to describe where it is. "Go two down from the top and 3 over from the left." I'd rather just have them filed and labeled with indexes, like this n3,4.
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What are the problems associated with the construction of index numbers under selected items?
what are the problems associated with the construction of index numbers
Solution to find 1000th prime number using python?
Here's a start umbers=[True]*5001 index=2 primes=[] while index<5000: multiplier=2 while index*multiplier <= 5000: Numbers[index*multiplier]=False multiplier+=1 index+=1 while Numbers[index]==False and index < 5000: index+=1 for x in range(0,5000): if Numbers[x]==True: primes.append(x) x+=1 print primes
What are index numbers used for?
Identifying array-elements.
How to write numbers in index form?
Writing Numbers in Index FormWe know that: So, we can write 8 as 23.Likewise, 27 can be written as 33and 125 can be written as 53.So far, we have considered numbers that have a group of the same factors. Sometimes, a number has more than one group of the same factors as shown in the following example.Example 20Write 200 in simplest index form.Solution:Key Termsimplest index form
How is analytical profile index read?
Using an API 20 E sheet.. then you use the book containing different API 7 digit numbers to identify your bacteria
When can you use index numbers?
When you are accessing an array's element.
Disadvantages of index number?
disadvantages of index numbers
What are the problems associated with the construction of index numbers under selected items?
what are the problems associated with the construction of index numbers
What are the merits and demerits of index numbers in statistics?
merits and demerits of index number
School index numbers?
F1194
Solution to find 1000th prime number using python?
Here's a start umbers=[True]*5001 index=2 primes=[] while index<5000: multiplier=2 while index*multiplier <= 5000: Numbers[index*multiplier]=False multiplier+=1 index+=1 while Numbers[index]==False and index < 5000: index+=1 for x in range(0,5000): if Numbers[x]==True: primes.append(x) x+=1 print primes
What is index value?
Index value is a phrase used to describe pairs of numbers that are arranged in a table. The purpose of this is so applications can match numbers.
What is the index form of numbers 9765625?
Index form of 9765625 is 9.765625 × 106
Utilities of index number in economics?
what is mean by statistical approach and economical approach in the theory of index numbers?
When postal index numbers introduced in India?
05.08.1972
What are index numbers used for?
Identifying array-elements.
How do you find HCF of 90 using index notations?
It doesn't matter what you use, you still need at least two numbers to find a GCF.
