Abstract
A fuzzy number is a quantity whose value is imprecise rather than exact as is the case with single-valued number.
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Islam, S., Mandal, W.A. (2019). Fuzzy Numbers and Fuzzy Optimization. In: Fuzzy Geometric Programming Techniques and Applications. Forum for Interdisciplinary Mathematics. Springer, Singapore. https://doi.org/10.1007/978-981-13-5823-4_4
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