This question already has answers here:
How to store more than 4 decimal places in an array in MATLAB
(2 answers)
Closed 5 years ago.
i have code below in matlab:
converted = ncread(this_file, 'U');
disp(converted(50,10,20));
and the result is:
-0.1561
actually the number is -0.15617890 but this code changes the the number of floating numbers. why?
MATLAB displays only 4 digits after the decimal point by default. You can use format to display more digits:
format long
converted = ncread(this_file, 'U');
disp(converted(50,10,20));
Related
This question already has an answer here:
Why did MATLAB delete my decimals?
(1 answer)
Closed 4 years ago.
I am calculating the area of objects in my image using bwarea like so:
i=imread('Z:\Azhagu project work\MRI\input.jpg');
imshow(i);
bwarea(i)
This gives the following output:
ans = 1.0428e+05
Why is the area in an exponential format?
It's not in exponential output; it's in scientific notation.
ans = 1.0428e+05 == 104280
You can force MATLAB to show all decimals using format long or format longG. This is just a display quirk of MATLAB, internally your number is stored as a double anyway, so for further calculations this is of no concern.
This area value is not in exponential format. For your given image, area is represented in Floating-Point numbers format. Hence the value 1.0428e+05 is actually 104280.
This question already has answers here:
How to store more than 4 decimal places in an array in MATLAB
(2 answers)
Closed 5 years ago.
is it possible to get this in an array with 16 decimals after the comma?
Poorly it gets cut in my Workspace as you can see in the link below.
Kind regards!
format long;
startYCoordinateNorthEast=([50.93952193697642, 6.99745722361763]);
here you can see the array, cut to 4 decimals but I need 16
In your Matlab workspace, you are right that format long will show you the long output:
>> startYCoordinateNorthEast
startYCoordinateNorthEast =
50.939521936976419 6.997457223617630
In the Workspace Viewer, to see all the decimals, you must click on the tab called "View". From there, under "Number Display Format" choose "Long Fixed Decimal"
This question already has answers here:
Why does floating-point arithmetic not give exact results when adding decimal fractions?
(31 answers)
swift: issue in converting string to double
(2 answers)
Closed 6 years ago.
I would like to round a double with 2 decimals.
I have tried many ways
- round * 100 /100
- by passing with a string
but it's the same matter
I would like 166.67 but I get 166.66999999
(look at the picture)
This question already has answers here:
How to compute word scores in Scrabble using MATLAB
(2 answers)
Closed 7 years ago.
I'm new to matlab ... I simply would like to convert letter to numbers such that:
A=1
B=2
C=3
all my numbers are capital case. Off course, I could define constant for each char, but is there a shorter way?
Thanks!
See the char function. You can give it an integer argument.
http://www.mathworks.com/help/matlab/ref/char.html
This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
Binary representation of a number in Matlab
I am using matlab and would like to convert a number such as 7546.456124865 to single precision.
I've used the single() command, but I would like to get the binary for the single precision floating point. How do I go about doing this?
>> num2hex(single(7546.456124865))
ans =
45ebd3a6