Matlab basic example
1. Defining a row matrix and performing operations on it
Assume that you want to evaluate the function f(x) = x^3-6x^2 + 3
at different values of x. This can be accomplished with two lines of
MATLAB code.
% Define the values of x
x = 0:0.01:1;
% Evaluate f
f = x .^ 3 - 6 * x .^ 2 + 3;
In this example, x varies between 0 and 1 in steps of 0.01. Comments
are preceded by a % sign. The symbols ˆ and * stand for the power and
multiplication operators respectively. The dot in front of ˆ n indicates
that each entry of the row matrix x is raised to the power n. In the
absence of this dot, MATLAB would try to take the nth power of x,
and an error message would be produced since x is not a square matrix.
A semicolon at the end of a command line indicates that the output
should not be printed on the screen.
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