Cannot get Q1, Q2, ..., Qn equations

I am doing a very easy program to solve beams. I want to make an infinite counter depending on the number of distributed loads the beam has. The code is:

clear all
clc;
syms L a b P x c1 c2 c3 c4 c5 n s r q

L=input('Length of the beam: ');

      p=input('Start location of the load: ');
      q=input('End location of the load: ');
      r=input('Start magnitude of the load: ');
      s=input('End magnitude of the load:' );
      m=-(s-r)/(q-p);
      b=-(m*p)-r;
      Q=m*x+b #this is the equation of the load
  end

What I want to do is get an "n" number of "Q" equations. For example, i have "n" distributed loads, so I need all of the following equations: Q1, Q2, ..., Qn.

Answer 1

[dpb]

Once again, "don't do that!!!" See the FAQ on "the Matlab way" to avoid it.

http://matlab.wikia.com/wiki/FAQ#Why_is_it_advised_to_avoid_using_the_.22eval.22_function.3F

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F