Multiplication and division plotmath show up as empty boxes in the Rstudio IDE:
plot(1,2,main=expression('1'%*%10^-03))
Yet, if this is printed to a pdf, it is fine:
pdf("Figure.pdf",width=12,height=9)
plot(1,2,main=expression('1'%*%10^-03))
dev.off()
Any idea what is going on here?