subtract very small value

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Maro
Maro 2015-5-22
回答： Star Strider 2015-5-22
when I subtract a very value small from another value. the answer remain the same as if I did not subtract any value for example if I subtract 1.9512e-005 from 1.5 the answer is 1.5 ...how do I enforce the matlab to output the correct answer?

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Star Strider
Star Strider 2015-5-22
Use the format function. You may want to use format longE.

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