%FUNCIONES MATEMÁTICAS EN MATLAB
f='2*x*tan(x^2)'
ff=vectorize(f)
x=[3, 7,0.1, pi/2]
y=eval(ff)

fff=sym(f)
diff(fff,1)
int(fff)

clear
%POLINOMIOS EN MATLAB
f='30*x^7+2*x^5-pi*x^2+1'
ff=vectorize(f)
x=[3, 7,0.1, pi/2]
y=eval(ff)
% o bien
f=[30, 0, 2, 0, 0, -pi, 0, 1]
Y=polyval(f,x)
y
Y-y
g=polyder(f)
roots(f)
conv(f,g)
poly([3,4,-9])

clear
%GRÁFICOS 2D EN MATLAB
x=[2,4,-3];
y=[1,2,4];
plot(x,y,'g')
hold on
x=[2,4,-3,2];
y=[1,2,4,1];
plot(x,y,'r:')
hold off


f='2*x*tan(x^2)'
ff=vectorize(f)
x=[0:10^-3:sqrt(pi/4)]
y=eval(ff)
plot(x,y)
legend('y=2*x*tan(x^2)')