# set terminal canvas solid butt size 600,400 fsize 10 lw 1 fontscale 1 name "spline_2" jsdir "." # set output 'spline.2.js' set grid nopolar set grid xtics nomxtics ytics nomytics noztics nomztics \ nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics set grid layerdefault linetype -1 linecolor rgb "gray" linewidth 0.200, linetype -1 linecolor rgb "gray" linewidth 0.200 set key inside right top vertical Right noreverse enhanced autotitles box linetype -1 linewidth 1.000 set title "The cubic Hermite basis functions" set xrange [ 0.00000 : 1.00000 ] noreverse nowriteback set yrange [ -0.200000 : 1.40000 ] noreverse nowriteback m0(x) = 1 m1(x) = x m2(x) = x**2 m3(x) = x**3 h00(x) = x**2 * ( 2 * x - 3) + 1 h01(x) = -x**2 * (2 * x - 3) h10(x) = x * (x - 1)**2 h11(x) = x**2 * (x - 1) GPFUN_m0 = "m0(x) = 1" GPFUN_m1 = "m1(x) = x" GPFUN_m2 = "m2(x) = x**2" GPFUN_m3 = "m3(x) = x**3" GPFUN_h00 = "h00(x) = x**2 * ( 2 * x - 3) + 1" GPFUN_h01 = "h01(x) = -x**2 * (2 * x - 3)" GPFUN_h10 = "h10(x) = x * (x - 1)**2" GPFUN_h11 = "h11(x) = x**2 * (x - 1)" plot h00(x), h01(x), h10(x), h11(x)