Keywords: LeftRiemann2.svg en A left Riemann sum of x 3 over 0 2 using 4 subdivisions Own Qef 2009-06-21 Shows same thing as this bitmap version file LeftRiemann2 png Gnuplot source <pre> set terminal svg font Bitstream Vera Sans 18 set output LeftRiemann2 svg set xrange 0 2 set yrange 0 8 set xzeroaxis linetype -1 set yzeroaxis linetype -1 set xtics axis nomirror offset 0 0 5 set ytics axis nomirror offset -0 5 0 set key off set border 0 set samples 100 plot '-' with boxes fill linetype rgbcolor blue linewidth 3 0 25 0 0 75 0 125 1 25 1 1 75 3 375 e plot x x x with line linetype rgbcolor red linewidth 3 </pre> Qef Rectangle method Images with Gnuplot source code |