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how to increse no digits after decimal point?

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rajesh kumar
rajesh kumar 2018-9-1
编辑： Stephen23 2018-9-4
in matlab coding i am getting ans =0.0012 i want to getting ans =0.001234903423 what to do please suggest me
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jonas
jonas 2018-9-1
编辑：jonas 2018-9-1
You can always use format long, but I don't know if you can specify the number of decimals more than that.

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KALYAN ACHARJYA
KALYAN ACHARJYA 2018-9-1
编辑：KALYAN ACHARJYA 2018-9-1
fprintf('%.12f', ans) %Upto 12 floating points, you can change the value range
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Stephen23
Stephen23 2018-9-4
编辑：Stephen23 2018-9-4
"Upto 12 floating points"
Why 12? Where does this limit come from? I don't see this limit mentioned anywhere in the fprintf help, nor is it related to the precisions of either double or single floating point numbers:
https://www.mathworks.com/help/matlab/matlab_prog/floating-point-numbers.html
When I try 15 decimal digits, it works just fine:
>> X = 0.123456789012345;
>> fprintf('%.15f\n',X)
0.123456789012345
Where did you get this "Upto 12 floating points" limit from?

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