If you only cared about the decimals printed, you could also use %.3f which again results in 1. In Matlab, if you specify a number of total characters that is less than the number of digits you have before the decimal point (or none at all), it will just print the entire number. To open in text mode, add 't' to the permission string, for example 'rt' and 'wt+'. In text mode on the PC,, the carriage return character preceding a newline character is deleted on input and added before the newline character on output. ![]() Accepted Answer Walter Roberson on 'f' or 'g' or 'e' Sign in to comment. It will fail when you have numbers above 9999.999 in this case. In binary mode, no characters are singled out for special treatment. x (indexi,indexj)str2num (string) indexjindexj+1 but at the end i want to use fprintf and convert num to string num2str again to print it in text file Theme Copy fprintf (fid, ) Sign in to answer this question. ![]() MATLAB has very readable and accessible documentation complete with working examples for you to try out. A conversion specification controls the notation, alignment, significant digits, field width, and other aspects of output format. The format argument is a string containing C language conversion specifications. 10e',x) ans 5.2010000000e+000 -8.3236000000e+003 3.0000000000e-004. sprintf is the same as fprintf except that it returns the data in a MATLAB string variable rather than writing it to a file. (I used it in the first fprintf call but not in the second.) The ( ) is a newline character. Otherwise it will be to the file you want to write to. This could give you an output like this: 1.200 34.564 8f',x) ans 5.20100000 -8323.60000000 0.00030000. The fprintf function optionally requires a ‘fileID’ variable as its first argument, with 1 indicating ‘stdout’, that being the Command Window. The function recycles the format string through the elements of A (columnwise) until all the. Consider two columns %8.3f%8.3f (note how you do not need a space between the floating point number formatter). The fprintf function is vectorized for nonscalar arguments. However, if you wanted to write lots of column data to a file that could easily be read by another program, this might be more useful (because the format could be known). In your example, using 8.3f for 1.2 wouldn't make much sense. The second line was added by me to illustrate the total number of characters (including white space). If you were to use 5.2f your output would be. ![]() The second - as you pointed out - represents the number of decimals.įor example, if you print 1.2 with 8.3f you get three empty spaces before the number: 1.200 The first number indicates the total number of character spaces (including the delimiting.
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