Merge branch 'master' of github.com:Ben1980/numericalIntegration

Author: Ben1980

romberg.plt

@@ -0,0 +1,16 @@
+set title "Romberg Parable"
+set xrange [0:1]
+set yrange [0:1.2]
+
+f(x) = 5/(exp(pi)-2)*exp(2*x)*cos(x)
+p(a,x)= a*x**2 + 1
+
+set arrow 1 from 0.5,0.001 to 0.5,0.724727 nohead lt 3
+set arrow 2 from 0.25,0.001 to 0.25,0.925565 nohead lt 3
+
+set label 1 at 0.4,0.7
+set label 1 "T(1/2)" tc lt 3
+set label 2 at 0.15,0.9
+set label 2 "T(1/4)" tc lt 3
+
+plot p(-1.07,x) title "p(x)"