TeX problem -- why?

This is working

gtext('\Sigma')
gtext('\color {red} 5')

This is not working

gtext('\frac{1}{2}')
gtext('\sqrt(5)')

Why??

[Igor]

error even for {}

Warning: Unable to interpret TeX string "\sqrt{5}"

Answer 1

[Teja Muppirala]

MATLAB's TeX does not support those. However, these two will work:

gtext('$\frac{1}{2}$','interpreter','latex','fontsize',50)
gtext('$\sqrt{5}$','interpreter','latex','fontsize',50)

To find out more about tex/latex support in MATLAB, look here:

http://www.mathworks.com/help/techdoc/ref/text_props.html#Interpreter

http://www.mathworks.com/help/techdoc/ref/text_props.html#String

[Igor]

Thanks