Hi:
Try this:
plot(c(0, 1), c(0, 1))
text(0.5, 0.5, expression(x == over(-b %+-% sqrt(b^2 - 4 * a * c), 2 * a)))
I've found it useful to print out the different plotmath expressions:
pdf('plotmath.pdf')
demo(plotmath)
dev.off()
HTH,
Dennis
On Thu, Jan 21, 2010 at 2:10 PM, Jason Rupert wrote:
Is there a way to display something like the quadratic equation, i.e. with a
numerator and demonator on a plot?
I think there is a way to create the equation in Latex, but wasn't sure if this
format would translate to plotting.
\begin{equation}
x = \frac{b +/- sqrt(b^2 - 4*a*c)}{2*a}
\end{eq
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