Quote:
Originally Posted by Linguist
You can use those subtraction tricks in the same way as you'd use a Turing machine to write computer programs... the question is - why? Fractions are much easier to work with than decimals
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Of course anyone would use a fraction in that PARTICULAR situation
But you have problems where you will get output in decimal form that cannot be represented as fractions. For example, my senior project used a symplectic integration scheme to predict the positions of the plants over hundreds of millions of years. You couldn't represent those positions in fractions.