This function is used for checking or searching for patterns in a given text
select one:
a. preg_match()
check()
b. regex()
c. regexp()

Least square fit to polynomial write a function leastsquarefit3pol that solves a linear system of equations to find a least squares fit of a third order polynomial to an experimental data set given as two row arrays. the function leastsquarefit3pol must explicitly solve a set of linear equations and cannot use polyfit. there should be no restriction on the size of the problem that can be solved.

What engine component is shown in the above figure?

Effective character encoding requires standardized code. compatible browsers. common languages. identical operating systems.