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rplotplotmath

Plot the positive infinity symbol and negative infinity symbol

I was wondering how I can plot the positive infinity sign and -Infinity sign in plot?

Here is my R code (with no success):

plot(1, ty ='n', ann = F, xlim = c(-4, 6), ylim = c(-3.5, 1.5) )

text(c(-4, 6 ), rep(1, 2), c( bquote(- infinity  ), bquote(infinity  ) ) )
Solution

  • Try: 

    text(c(-4, 6 ), rep(1, 2), c( bquote("- \U221E"), bquote("\U221E") ) )