Using Sprintf on matlab
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Part b) Display the content of “log10(A)” on the screen using “sprintf” in the following format: “A is [1 10 100 1000]. log10(A) calculated using the natural logarithm function is [0 1 2 3].” In the format above, where the numbers are bold, the values of “A” and “log10(A)” must be used instead of simply typing the numbers. In other words, do not simply type in the entire line above between two quotation marks of “sprint”, but use a format similar to the following: sprint(‘A is [ %? ]. log10(A) calculated using the natural logarithm function is [ %?]’ ,A,?) What you need to find is the format to display “A” and “log10(A)”, e.g. %u, %d, %s etc (the first and second question marks) and the function you defined in part (a) for the third question mark.
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Star Strider
on 29 Jan 2015
5 Comments
Star Strider
on 29 Jan 2015
Edited: Star Strider
on 29 Jan 2015
I would use ‘%f’ for the natural logarithm function output as well. The ‘%u’ is for base 10 unsigned integers, and will produce strange results.
This works perfectly for me:
A = [1 10 100 1000];
C = log(A);
logarithmic = sprintf('A is [%f %f %f %f], log10(A) calculated using the natural logarithm function is [%f %f %f %f]',A,C)
and produces:
logarithmic =
A is [1.000000 10.000000 100.000000 1000.000000], log10(A) calculated using the natural logarithm function is [0.000000 2.302585 4.605170 6.907755]
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