(Times-RomanF) 25 Font 0.5 mm Pen [ 50 550 50 800][ 0 30 -0.5 1 ] Axe2 [ (0) (10) (20) (30) ] GradX [ (-0.4) (-0.2) (0) (0.2) (0.4) (0.6) (0.8) (1.0) ] GradY gsave % save current color pen etc... 0.15 mm Pen [ Xmin 0 Xmax 0 ] Black 1 Dash Lines grestore % restore color pen dash... ? gsave [ % LC_NUMERIC=C to make sure that "." is the decimal separator ! LC_NUMERIC=C ./sinx.awk ] Blue Lines grestore ? gsave [ ! LC_NUMERIC=C ./sinx2.awk ] 1 Dash Red Lines grestore 300 720 % beware to escape ( in a postscript string ( Blue ) ( sin\(x\)/x ) Label ( Red 1 Dash Lines ) ( sin\(x\)/sqrt\(x\) ) Label ?