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Illustration of Spreadsheet Files:
This reads the numbers in a double vector variable nums and the text in a cell array txt (the xlsread function forever returns the numbers first and later text). The cell array is 4 × 3. It consist three columns as the file had three columns, but as the middle column had numbers (that were extracted and stored in the nums vector), at middle column in the cell array txt consists of the empty strings.
>> txt{1,2}
ans =
''
>> txt{1,3}
Cindy
A loop can then be used to echo-print the values from the spreadsheet in the original format:
>> for i = 1:length(nums)
fprintf('%c %d %s\n', txt{i,1}, ...
nums(i), txt{i,3})
end
a 123 Cindy
b 333 Suzanne
c 432 David
d 987 Burt
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5 p2+8p+15, 3 p2-3p-18, 12 p2-p-30
Error-Checking for Integers: As MATLAB uses the type double by default for all the values, to check to make confirm that the user has entered an integer, the program have to c
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Give the formula for a rational function that has a hole at x=7 & vertical asmptote at x=-3/2
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Find Minimum and Maximum for each row To find the maximum (or minimum) for each row, the dimension of 2 (that is how a MATLAB refers to rows) can be identified as the third arg
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