## Word Math & Unit Conversion abilities in the EllaZ System | ||

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You know the difference between twenty-four, twenty fours, and twenty fourths. You understand "divide six by seven", "six divided by seven", and "six over seven." Ella knows these differences also, and can do remarkable word math. Just give her a few tests. Here see how Ella's restatement of the problem clarifies the basis and helps prevent confusion. Ever forget what you had previously punched into a calculator? Ella allows mixed symbolic and natural language calculations: Ella rounds numbers to a reasonable number of digits: Next Ella finds an extra "and" which can be the same as "plus," then removes it and tells you what she did. Also note that extra words like "another" and "then" don't cause any trouble:
Math functions then are used with a wide variety of If you try to divide by zero, convert a temperature below absolute zero, convert meters into minutes, and so on, Ella explains what went wrong: Then there is trigonometry, where Ella lets you know her assumption as to units of angle: Games and other functions make use of word math also. "Make it half a grand" or "double it and add thirty" are good answers when Ella asks "same bet?" while playing blackjack. | ||

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