Smallest positive number in MATLAB
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I recently stumbled upon a question on Cody (#1874), which asked the user to input the smallest in MATLAB.
As per my knowledge, realmin was supposed to return the smallest number in MATLAB, however that number is the smallest normalized floating point number. According to this thread of Stack overflow, it says eps(0) returns the smallest denormal number available in MATLAB.
However, my question is how eps(0) is denormal?
> realmin returns 2.2251e-308, where as eps(0) returns 4.9407e-324
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Stephen23
2021년 4월 27일
편집: Stephen23
2021년 4월 27일
eps(0) returns the smallest positive non-zero floating point number, which is denormal:
format hex
eps(0)
Normal and denormal floating point numbers are explained here:
From the main architect of IEEE 754 (the term "gradual underflow" refers to denormal numbers):
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