Overflow of fractional representations of floating point numbers?

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Lucas Medina
Lucas Medina 2015-7-22
回答： Walter Roberson 2015-7-23
So if I have a matrix of floating point numbers A, I know that I can make it symbolic:
A = sym(A, 'f');
Now, each of the entries is represented by a fraction.
I am concerned with possible overflow. As I perform more and more operations on these entries, the numerator and denominator of each entry becomes larger and larger. So what I am wondering is, what is the range of the numerator and the denominator?
How can I prevent overflow? If a numerator or denominator exceeds its range, how can I retain the preciseness of the fraction?
Thanks

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回答（1 个）

Walter Roberson
Walter Roberson 2015-7-23
You are limited to 2^29 + 1 decimal digits it appears to me. You might encounter practical limitations a lot sooner than that, though.

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