5-Write an EBNF rule that describes the following while statement of Java. Then, write the recursive-descent subprogram in Java for the EBNF rule. Please sum-
mit your source code and a screen shot of the parsing of the following examples.
do{
if (number < 10 )
number=number+1;
else
number=number+2;
} while (number < 20)

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.

When early motion pictures played in movie theaters, they were often accompanied by live organ or piano music. which of the following are the most likely reasons that this happened? (select all that apply). the music was provided to distract audience members from the loud sounds made when filmstrips were changed. the music accompanied the movies because the movies were silent and audiences were used to hearing music during plays in theaters. the music usually was played before, and sometimes after the movie, as an alternative form of entertainment. the music viewers to interpret the dramatic action in the films.

The place where the extended axis of the earth would touch the celestial sphere is called the celestial