| 单词 | irrational number |
| 释义 | irrational numbernoun Mathematics.a number that cannot be exactly expressed as a ratio of two integers. Origin of irrational numberFirst recorded in 1545–55 Words nearby irrational numberirradicable, irrational, irrationalism, irrationality, irrationalize, irrational number, Irrawaddy, irreal, irrebuttable, irreclaimable, irreconcilable Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for irrational numberirrational number nounany real number that cannot be expressed as the ratio of two integers, such as π Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for irrational numberirrational number A number that cannot be expressed as the ratio of two whole numbers. notes for irrational numberThe square roots of most whole numbers are irrational numbers. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Scientific definitions for irrational numberirrational number [ ĭ-răsh′ə-nəl ] A number that cannot be expressed as a ratio between two integers and is not an imaginary number. If written in decimal notation, an irrational number would have an infinite number of digits to the right of the decimal point, without repetition. Pi and the square root of 2 (√2) are irrational numbers. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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