Why Greek symbol epsilon "ɛ" is blurred in my legend and label

Dear Friends,

Q1. I used the following code for labels and legend get Greek symbol epsilon "ɛ" . However it is blurred in label and worse in legend .Could you please advice how can I get the black color.

Q2. Can you please advice how can i get the same symbol in my text.

Attahced fig for reference.

xlabel ('$\varepsilon_{1}(\%)$ ','interpreter','latex')

ylabel ('$\varepsilon_{2}$ , $\varepsilon_{3}(\%)$ ','interpreter','latex')

legend('$\varepsilon_{2}=\varepsilon_r$','$\varepsilon_{3}=\varepsilon_{\theta}$ ','interpreter','latex')

txt1 = (" \leftarrow \epsilon_{2}=\epsilon_{3}="+B+"{\epsilon_1}");

Answer 1

[Selvarajah Premnath]

I found the solution, It may be helpful for someone.

Thank you

a=([char(949) '_{2}']);

b=([char(949) '_{3}']);

c=([char(949) '_{1}']);

d=([char(949) '_{r}']);

e=([char(949) '_{\theta}']);

legend(a+" = "+d,b+" = "+e)

t.FontSize = 10;

s.FontAngle = 'italic';

xlabel ([char(949) '_{1}']+"(%)")

ylabel ([char(949) '_{2}']+ " , " +[char(949) '_{3}'] + " (%)")

ylim ([0 .16]);

xlim ([0 .16]);

txt1 = (" \leftarrow"+ a+ "=" +b +"=" +B + c);

[Selvarajah Premnath]