Beginner... why a matrix with numbers and strings doesn't give me the numbers? ( I know I have to transform the numbers into strings)

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Douglas Alves
Douglas Alves 2014-3-23
评论： Douglas Alves 2014-3-29
I just would like to know how it works.
e.g
t = 71 ;
c = (t-32)/1.8 ;
hey = ['The temperature is , c , 'C']
  1. it's not going to work! I have to use a command to transform "c".why???
a = [ 'how's it going' , 10 , 'cool' ]
it will give me both strings but not the number 10 ....
it looks like there's no "10" in "a" ..
thanks for helping

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Walter Roberson
Walter Roberson 2014-3-23
a = [ 'how''s it going' , num2str(10) , 'cool' ];
or
a = sprintf('how''s it going %d cool' 10];
or
a = sprintf('%s %d %s', 'how''s it going', 10, 'cool' ];
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Walter Roberson
Walter Roberson 2014-3-24
Characters are stored internally as non-negative integers, together with a flag indicating to display as characters. For example 33 corresponds to the character '1', 65 corresponds to 'A', 126 corresponds to '~'. When you mix numbers into a character array, the result might the flag saying to display as characters, or the flag might apply to the numbers as well. The number 10 corresponds to the character "newline" so mixing a 10 in with a string can result in a string that has newline at that location.
See also char()

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