how to count a number of digits.

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komal Bhandari
komal Bhandari 2011-11-3
回答： Melisa Sahin 2020-6-23
How to count a number of digits in a given number withoud using numel and length(num2string()). probably use for loop or while loop.

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Walter Roberson
Walter Roberson 2011-11-3
Well, there is log10(). Or there is counting digits upward until your number is smaller than 10^digits. There are other counting methods too.
One question you are going to have to deal with is what to do if the number is negative. Another question to deal with is what to do if the number is between -1 and +1, such as 0.00043
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komal Bhandari
komal Bhandari 2011-11-3
i know but i mean to say if there any word to describe the no value situation..
komal Bhandari
komal Bhandari 2011-11-3
I got it sir. do not worry.

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Jake Bolanski
Jake Bolanski 2011-11-3
I'd go with what Walter mentioned. However, in general length is the ideal way to go.
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Walter Roberson
Walter Roberson 2011-11-3
length() of the formatted string is considerably slower than log10.

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Melisa Sahin
Melisa Sahin 2020-6-23
How counts of number digits use a recursion function ?

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