ULI101 – Quiz 2-1 Student name: ______________________________________ ULI101 Section: _______________ This quiz is worth 2.5% of your course grade. Maximum time allowed is 20 minutes. See the sample test file Instructions: Provide grep commands according to the following criteria‚ working with a file called ’input’. With the exception of question #12‚ all questions are worth 2 marks. 1. Display all lines that are exactly 5 characters long: grep “^.....$” input more
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POSTFIX NOTATION Postfix also known as Reverse Polish Notation (or RPN)‚ is a notational system where the operation/function follows the arguments. For example‚ "1 2 add" would be postfix notation for adding the numbers 1 and 2. Most programming languages use either prefix notation ("add(1‚ 2)" or "(add 1 2)") or infix notation ("1 add 2" or "1 + 2"). Prefix and infix are more familiar to most people‚ as they are the standard notations used for arithmetic and algebra. Why then should we use postfix
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fractions were first developed and used by the Chinese in the 1st century BC‚ and then spread to the Middle East and from there to Europe. The written Chinese decimal fractions were nonpositional. However‚ counting rod fractions were positional. Decimal Notation Decimal notation is the writing of numbers in a base-10 numeral system. Roman numerals have symbols for the decimal powers (1‚10‚ 100‚ 1000) and secondary symbols for half these values (5‚ 50‚ 500).Brahami numerals have symbols for numbers 1–9
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The binary numeral system‚ or base-2 number system‚ represents numeric values using two symbols‚ 0 and 1. More specifically‚ the usual base-2 system is a positional notation with a radix of 2. Because of its straightforward implementation in digital electronic circuitry using logic gates‚ the binary system is used internally by almost all modern computers. Why Computers Use Binary Binary numbers – seen as strings of 0’s and 1’s – are often associated with computers. But why is this? Why
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of base 60 for no particular reason‚ but simply due to the fact that there is no suitable way to represent hours‚ minutes and seconds using the decimal numeral system. Not only did the Babylonians discover this‚ they also developed the use of the positional number system and the concept of place values long before it was implemented in the modern base 10 system. BIBLIOGRAPHY • http://gwydir.demon.co.uk/jo/numbers/babylon/ •
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numeration) is a writing system for expressing numbers‚ that is‚ a mathematical notation for representingnumbers of a given set‚ using digits or other symbols in a consistent manner. It can be seen as the context that allows the symbols "11" to be interpreted as the binary symbol for three‚ the decimal symbol for eleven‚ or a symbol for other numbers in different bases. Equivalent Numbers in Decimal‚ Binary and Hexadecimal Notation: Decimal Binary Hexadecimal 0 00000000 00 1 00000001
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A numeral system (or system of numeration) is a writing system for expressing numbers‚ that is‚ a mathematical notation for representing numbers of a given set‚ using digits or other symbols in a consistent manner. It can be seen as the context that allows the symbols "11" to be interpreted as the binary symbol for three‚ the decimal symbol for eleven‚ or a symbol for other numbers in different bases. Ideally‚ a numeral system will: * Represent a useful set of numbers (e.g. all integers‚ or
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which are encoded using some variant of binary-coded decimal. In computer science‚ the binary numeral system‚ or base-2 numeral system‚ represents numeric values using two symbols: 0and 1. More specifically‚ the usual base-2 system is a positional notation with a radix of 2. Numbers represented in this system are commonly called binary numbers. Because of its straightforward implementation in digital electronic circuitry using logic gates‚ the binary system is used internally by almost all modern computers
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Number Systems‚ Base Conversions‚ and Computer Data Representation Decimal and Binary Numbers When we write decimal (base 10) numbers‚ we use a positional notation system. Each digit is multiplied by an appropriate power of 10 depending on its position in the number: For example: 843 = 8 x 102 + 4 x 101 + 3 x 100 = 8 x 100 + 4 x 10 + 3 x 1 = 800 + 40 + 3 For whole numbers‚ the rightmost digit position is the one’s position (100 = 1). The numeral in that position indicates how many ones
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The Oriental Mathematics : Practical Arithmatic and Mensuration ¢º Characteristic of Orient Mathematics | ¢º Babylonian Mathematics | ¢º Egyptian Mathematics | ¢º Marking of Number | | ¡Ý The Egytian Hieroglyphic | | ¡Ý The Babylonian Cuneiform | | ¡Ý The Mayan Numeral System | | ¡Ý The Roman Numeral System | | ¡Ý The Hindu - Arabic Numeral Systern | ¡ß Characteristic of Orient Mathematics In the Nile in Africa‚ the Tigris and Euphrates in western Asia‚ the Indus and
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