psxy -B WSEN

huolongguo

gawk " BEGIN {for (x=-13;x<=3; x+=0.1) print x,exp(x) } " >exp.txt

psxy exp.txt -R-3/3/0/12 -Jx2/1 -Bg1a1:"x":/g1a1:"y=exp(x)":>exp.ps

psxy exp.txt -R-3/3/0/12 -Jx2/1 -Bg1a1:"x":/g1a1:"y=exp(x)":WeSn>exp.ps

psxy exp.txt -R-3/3/0/12 -Jx2/1 -Bg1a1:"x":/g1a1:"y=exp(x)":WS3exp.ps