want a floating value?

Question

taher azim 2016-9-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/302641-want-a-floating-value

回答： Walter Roberson 2016-9-11

t1=14;
t2=int16(2.2*14);
y=t2/t1
y=2

but i want a floating value or double of y i.e y=2.2143 in answer but it is showing me a integer value. help me in sorting this out.

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Answer 1

Walter Roberson 2016-9-11

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https://ww2.mathworks.cn/matlabcentral/answers/302641-want-a-floating-value#answer_234410

在 MATLAB Online 中打开

You have a integer data type in an operation with a double precision data type (t1 = 14 is double precision.) MATLAB defines an operation combining an integer data type and double precision as being carried out in double precision and then converted to the integer data type. Your code is currently equivalent to

y = int16( double(t2) / t1 );

If that is not what you want, then you should either not make t2 into int16, or else you should convert it before the division:

y = double(t2) / t1;