
Recent Posts
Recent Comments
Archives
Categories
Meta
Author Archives: arodriguezm
How to check if a viable is even or odd
Oldest question in the history of humanity… If the number is even, the remainder after the division by 2 is zero, and 1 if the number is odd, so using rem function (which actually calculates the remainder of the division between … Continue reading
Posted in checking format
Leave a comment
How to rotate a simple plot
Some times you would need to rotate your figure to display the axis rotated 90 degrees counter clockwise. The easiest way to do this rotating the view. You can do this using the command view as follows: view([90 90]) If you … Continue reading
Posted in Plots
Leave a comment
How to determine if the input is a scalar real number
Some times it is interesting to know whether the input is a scalar real number, as for example if we are trying to introduce the sampling frequency of a sequence. We can use some of the following commands: isscalar: … Continue reading
How to check array dimensions
There are a few matlab commands to determine array size or shape: length: finds the number of elements along the largest dimension of an array. ndims: returns the number of dimensions of the array. size: returns the sizes of each … Continue reading
How to determine whether input belong to a set of numbers
The easiest way is to sum up the result of the comparison between the input and the array. For example, imagine that you have an array of numbers x and you want to know if 5 is one of these numbers. You … Continue reading
How to determine whether input is integer
The easiest and fastest way to check if a variable is an integer independently of its format is to compare the input with its rounded version, for example: x==floor(x) If we are just interested in knowing if the input is an … Continue reading