% Matlab note bp x^p + ... + b1 x + b0

p = [0.9, 1]
roots(p)

p = [-.6, .5, 1]		% .6x^2 + .5x + 1 
roots(p)

p = [1.5, -.75, 1]
roots(p)

% Scilab note c0 + c1 x^1 + ... + cp x^p

p=poly([1,.9],'x',["coef"])	
roots(p)

p=poly([1,.5,-.6],'x',["coef"])	// 1 + .5x + .6x^2 !		
roots(p)

p=poly([1,.75,1.5],'x',["coef"])	
roots(p)