symsum returning a large fraction

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Andrew Chen
Andrew Chen 2017년 1월 22일
댓글: Andrew Chen 2017년 1월 22일
I am using the symsum command to obtain a value for the summation of a series. My specific code is
syms g
SUM = symsum(.9^g,g,0,20);
The answer given to me by matlab is 890581010868487640791/100000000000000000000. I can't seem to change the formatting of the value, any help is appreciated!

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Niels
Niels 2017년 1월 22일
SUM may be of class sym, try
SUM=double(SUM)
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Andrew Chen
Andrew Chen 2017년 1월 22일
Thanks, this works!

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