Sets - Roster Method
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Sets - Roster Method











































Use the roster method to write " the set of irrational numbers which scientific calculators have" .
(when using Pi please spell the name without using a Greek letter)

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Sep 22, 2011
Calculators: Pre-loaded Values for Irrational Numbers
by: Staff


The question:

Use the roster method to write " the set of irrational numbers which scientific calculators have".

(when using Pi please spell the name without using a Greek letter)


The answer:

As you undoubtedly know already, the complete set of irrational numbers is so large it cannot be counted.

The complete set of all possible irrational numbers cannot be listed in roster form.

The complete set of irrational numbers is sometimes expressed as R - Q (the complete set of all real numbers minus the complete set of all rational numbers).

You are correct that about the fact that scientific and graphing calculators use pre-loaded values for some irrational numbers. They also use special pre-programmed calculating algorithms to handle irrational numbers.

How many pre-loaded values of specific irrational numbers does a calculator use?

I do not know. Pre-loaded values would certainly include Pi, the golden ratio, Euler’s number, the square root of 2, the square root or 3, and many others.

Converting an irrational number into a fraction which approximates the irrational number is also a feature which scientific calculators often include.

My scientific calculator has a single command for converting the any decimal (rational or irrational) into an fraction which is equivalent or approximately equivalent (in the case of irrational numbers).


Thanks for writing.

Staff
www.solving-math-problems.com



Jun 28, 2012
what is rule and roster method?
by: vince

hi sir or ma'am what is rule and roster method can u please show me? THANKS

Jun 28, 2012
Roster Method
by: Staff


The answer:



I have found a good example to your question in our archives.

Open the following link to see a comparison of:


1. ROSTER Notation
2. SET BUILDER Notation
3. INTERVAL Notation
4. GRAPHICAL Representation


http://www.solving-math-problems.com/set-builder-notation-212-1314151617281920.html



Thanks for writing.

Staff
www.solving-math-problems.com



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