Finding approximate real solution to a equation
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    Vinit Nagda
 il 22 Set 2021
  
    
    
    
    
    Commentato: Vinit Nagda
 il 22 Set 2021
            Can anyone please help me, how to find the approximate real solution to the following polynomial:
syms x
eqn=0.0941*x^3+0.1926*x-1500;
I used solve and simplify functions, but I don't get a real value.
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  Alan Stevens
      
      
 il 22 Set 2021
        You don't need syms here.  Try the roots function.
help roots
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  Alan Stevens
      
      
 il 22 Set 2021
				You could try something like
coeffs = [0.0941, 0, 0.1926, -1500];
r = roots(coeffs);
indicator = find(r==real(r));
disp(r(indicator))
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