Update test.ipynb

python/test/sandbox/test.ipynb

@@ -17,9 +17,9 @@
     "A nice upcoming extension is the ability to design curves in the Special Euclidian group SE3.\n",
     "\n",
     "However in this tutorial we are going to focus on a rather unique trait of the library, which is the ability to work with variable control points. Rather than being given a constant value, the control points can be expressed as the linear combination of one or several variables. The main advantage of this representation is that variable curves\n",
-    "can be automatically derivated or integrated with any effort. \n",
+    "can be automatically derivated or integrated without any effort. \n",
     "\n",
-    "The other interest of variable curves is the ability to easily formulate optimization problems, which will be the focus of this tutorial. We will use the python bindings of the curve library to go step-by-step to formulating and solving an optimization problem.\n",
+    "The other interest of variable curves is the ability to easily formulate optimization problems, which will be the focus of this tutorial. We will use the python bindings of the curve library to go through the steps of formulating and solving an optimization problem.\n",
     "\n",
     "## The problem: trajectory fitting\n",
     "\n",