3.1 Matrices Copyright © Cengage Learning. All rights reserved. Matrices Matrices are classified in terms of the numbers of rows and columns they have. Matrix M has three rows and four columns‚ so we say this is a 3 4 (read “three by four”) matrix. 2 Matrices The matrix has m rows and n columns‚ so it is an m n matrix. When we designate A as an m n matrix‚ we are indicating the size of the matrix. 3 Matrices Two matrices are said to have the same order (be the
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Argument for using a computer With the popularity of computers‚ almost every family has one computer. Some parents‚ for various reasons‚ let children use computers for learning‚ relaxing‚ and so on. However‚ children between ages of 6 and 16 are in the growth stage. Simply playing for a couple of minutes is acceptable‚ while using computers for a long time should be discouraged for that it will do harm to children’s eyes‚ discipline‚ self-control and physical growth‚ which mainly reflects in the
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English Idioms Idioms and idiomatic expressions in English An idiom is a group of words in current usage having a meaning that is not deducible from those of the individual words. For example‚ "to rain cats and dogs" - which means "to rain very heavily" - is an idiom; and "over the moon" - which means "extremely happy" - is another idiom. In both cases‚ you would have a hard time understanding the real meaning if you did not already know these idioms! A (26) B (26) C (27) D (25) E (25)
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Over such long periods of time‚ words become manipulated‚ many times to the point where the meaning changes entirely. This is the case with the word “ghetto.” The word ghetto can be traced all the way back into the 1500’s. This word has infiltrated itself into today’s society and culture seamlessly. However the current definition of the word is far from what the original definition was. Perhaps due to the connection that the word ghetto has with urban culture‚ the word has evolved over time to have
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to Nigga: Not Bad After All" When some think about the word nigger they immediately think about negativity and some might even venture to say that it is a "bad" word. It takes you back to a time when blacks were oppressed and demoralized. When blacks were looked at as inferior and not worthy to obtain equal rights in America. But that was decades ago and it is now the 21st century. Not only have we changed the spelling of the word‚ by dropping the er and adding a‚ but the definition has changed
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SIGNALLING WORDS Examples 1. Time/order At first At first the freemen of both town and country had an organization and a type of property which still retained something of the communal as well as something of the private‚ but in the town a radical transformation was taking place. Eventually Eventually the group did manage to buy some land in a village not far from London‚ but the project had to be abandoned when the villagers zoned their land against agricultural use. Finally Finally‚ there have
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A thousand words and million thoughts There is a saying that "a picture is worth a thousand words and a million thoughts". When my mother sent me a picture of my little brother DJ playing football in his first year‚ I had a million positive thoughts running through my head. Many thoughts not just thoughts of him playing football but about everything. That photo represents a lot more to me and my family than what meets the eye. This
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beer. Fungi also cause a number of plant and animal diseases: in humans‚ ringworm‚ athlete’s foot‚ and several more serious diseases are caused by fungi. Fungi are more chemically and genetically similar to animals than other organisms‚ thus this makes fungal diseases very difficult to treat. Plant diseases caused by fungi include rusts‚ smuts‚ and leaf‚ root‚ and stem rots‚ and may cause severe damage to crops. However‚ a number of fungi‚ in particular the yeasts‚ are important "model organisms"
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Descriptive Words Smile‚ grin‚ beam‚ smirk . . . Frown‚ scowl‚ glare‚ glower‚ grimace . . . Stare‚ gaze‚ gape‚ watch‚ gawk‚ ogle‚ look‚ examine‚ leer . . . Flinch‚ recoil‚ balk‚ cringe‚ shy away‚ pull back‚ wince‚ cower‚ shrink‚ tremble . . . Incredulous‚ disbelieving‚ skeptical‚ doubtful‚ dubious‚ uncertain‚ suspicious‚ questioning‚ vague . . . Quizzical‚ questioning‚ puzzled‚ surprised‚ perplexed‚ inquiring Interested‚ curious‚ involved‚ attentive‚ concerned‚ attracted‚
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with this analysis known as the Porter’s Five Forces Model. Understanding the dynamics of competitors within an industry is critical for several reasons. First‚ it can help to asses the potential opportunities of your venture‚ especially if entering the market as a new player. It can also be a critical step to better differentiate yourself from others that offer the similar products or services. Proter’s Five Forces attempts to realistically assess
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