search for: beta_perp

...inear_chain_perpendicular.pdf") par( mar = c(4.5,5, 2, 1) + 0.1) plot(data[ ,1], data[ ,4],col="blue",lwd=1.5,lty=1,pch=5,ylab=expression(""*beta[n]^{perpendicular}/beta[1]*""), xlab=expression(""*n*"") ,cex.axis=1.4,cex.lab=1.6) lines(x,beta_perp(as.list(coef(nls.out)), x), col="black", lwd=2) dev.off() Greek letters are understood on the spot, but this is not the case for the perpendicular symbol in LaTex. Does anyone know where I can find a list of LaTex symbols translated for R? Many thanks Lorenzo