set term svg fsize 18 background rgb "white"
set title "Error-function vs tabulated values
set key bottom right
set tics out
set grid
set xzeroaxis
set yzeroaxis
set xlabel "x"
set ylabel "y"
set out "Erf.svg"
plot \
 "out.erf.txt" with lines title "error function"\
,"out.table.txt" with points pt 7 ps 0.7  title "tabulated values"\