Getting error code "unable to interpret LaTeX string..."

and am not sure why. I'm trying to add formulas to a graph as fractions using this code:

text(10,.2,'Ea=$\displaystyle\frac{-1.436}{\r}$','interpreter','LaTeX')

Answer 1

[per isakson]

This produces a result

    text(.2,.2,'Ea=$\displaystyle\frac{-1.436}{17}$','interpreter','LaTeX')

With your example

• Matlab seems to have trouble with "\r"?
• "10" positions the text outside the default axes.

Try: http://www.codecogs.com/latex/eqneditor.php

[cassie]

You were right on both counts. One: I had my x and y flipped. duh. the other i took out the backslash (don't know why) but this works: text(.3,-10,'Ea=$\displaystyle\frac{-1.436}{r}$','interpreter','LaTeX')