I want to reduce accuracy and precision to 3 digits.
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for example I want to a=2.18+0.139; with 3 digits answer must be 2.31. is any way to do this?
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Praveen Iyyappan Valsala
am 25 Apr. 2018
I don't know any inbulit function which can do that. But, you can try something like below
trun=@(num,Ndigits)floor(a*10^Ndigits)/10^Ndigits;
trun_a=trun(a,2);
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Walter Roberson
am 25 Apr. 2018
No, there is no built-in way.
You can use the symbolic toolbox with digits set to 3, but that will round rather than truncate.
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Stephen23
am 26 Apr. 2018
Note that setting the digits does not mean that calculations will be performed with exactly that precision, because calculations may use guard digits.
Tom Wenk
am 25 Apr. 2018
Like Walter Roberson stated, I think you have to use the symbolic toolbox for that.
Maybe this function from the toolbox can help you: https://de.mathworks.com/help/symbolic/digits.html
3 Kommentare
Walter Roberson
am 2 Mai 2018
For addition: multiply the original values by 100, take floor() or fix(). Do the addition. Divide the result by 100.
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