In 07_Variational_Circuits notebooks, remove unneeded variable n_iter

Also, in the Forest version set p=1 in the code.

Author: dudalev

forest_version/07_Variational_Circuits.ipynb

@@ -147,7 +147,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "We set $p=2$ and initialize the $\\gamma_i$ and $\\nu_i$ parameters:"
+    "We set the number of steps $p=2$ and initialize the $\\gamma_i$ and $\\nu_i$ parameters:"
    ]
   },
   {
@@ -161,8 +161,7 @@
    },
    "outputs": [],
    "source": [
-    "n_iter = 10 # number of iterations of the optimization procedure\n",
-    "p = 1\n",
+    "p = 2\n",
     "β = np.random.uniform(0, np.pi*2, p)\n",
     "γ = np.random.uniform(0, np.pi*2, p)"
    ]

qiskit_version/07_Variational_Circuits.ipynb

@@ -162,7 +162,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "We set $p=2$ and initialize the $\\beta_i$ and $\\gamma_i$ parameters:"
+    "We set the number of steps $p=2$ and initialize the $\\beta_i$ and $\\gamma_i$ parameters:"
    ]
   },
   {
@@ -176,7 +176,6 @@
    },
    "outputs": [],
    "source": [
-    "n_iter = 10 # number of iterations of the optimization procedure\n",
     "p = 2\n",
     "beta = np.random.uniform(0, np.pi*2, p)\n",
     "gamma = np.random.uniform(0, np.pi*2, p)"