disp the symol of triangle in figure

hi,

I think, i ask a quetion in bed expression

i need disp tringle but not like this

emxple

disp teta '\teta'

disp a small tringle '\delte'

i need to disp the big triangle

thank you

Answer 1

[Sean de Wolski]

plot(1,1,'r^')

Answer 2

[Walter Roberson]

http://www.mathworks.co.uk/matlabcentral/answers/14751-greek-alphabet-and-latex-commands-not-a-question