Ticket #2236: plot_fix_endpoints.patch

a/sage/plot/plot.py

@@ -3321 +3321 @@
-    We can change the line style to one of '--' (dashed), '-.' (dash dot),
-    '-' (solid), 'steps', ':' (dotted):
-        sage: plot(sin(x), 0, 10, linestyle='-.')
+
+    TESTS:
+    We do not randomize the endpoints:
+        sage: p = plot(x, (x,-1,1))
+        sage: p[0].xdata[0] == -1
+        True
+        sage: p[0].xdata[-1] == 1
+        True
+        
-    """
-    def _reset(self):
-        o = self.options
@@ -3402 +3411 @@
-        exceptions = 0; msg=''
-        for i in range(plot_points):
-            xi = xmin + i*delta
-
+
+
-                xi += delta*random.random()
-                if xi > xmax:
-                    xi = xmax
-se:
+if i == plot_points-1: 
-                xi = xmax  # guarantee that we get the last point.
-                
-            try: