Trouble giving decimal input

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MD JAHIDUL HAQUE KHAN
评论： Walter Roberson 2020-9-23
Hi, my code is as shown below, i tried as switch function instead of else if statement. However, the code is taking only integer numbers, for decimal numbers showing 'out of range'.
function category = pH21Category(pH)
switch true
case any(pH == 0:2)
category = 'Strongly acidic';
case any(pH == 3:5)
category = 'Weakly acidic';
case ismember(pH,6:8)
category='Neutral';
case ismember(pH,9:11)
category='Weakly Basic';
case ismember(pH,12:14)
category=('Strongly basic');
otherwise
category=('out of range');
end

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采纳的回答

Walter Roberson
Walter Roberson 2020-9-23
0:2 does not express the range starting from 0 and ending at 2.
0:2 expresses a vector of numbers starting from 0 and incrementing by 1 until 2 is reached. That is the vector containing 0, 1, and 2. No other values are included in 0:2
You will need to test
0<=ph & ph < 2
but think about whether you want < or <= for the bounds.

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