Update Artificial_Calc_Teacher_v1.8.ipynb

Artificial_Calc_Teacher_v1.8.ipynb

@@ -119,7 +119,7 @@
    "source": [
     "from sympy.simplify.fu import TR22\n",
     "from sympy import sin,cos,ln,exp,tan,Function,Derivative,Eq,Integral,Rational\n",
-    "from sympy import factor_terms,simplify, sqrt, cbrt\n",
+    "from sympy import factor_terms,simplify, sqrt\n",
     "from sympy.abc import x\n",
     "import random\n",
     "f = Function('f')\n",
@@ -135,7 +135,7 @@
     "        return x*random_value\n",
     "    def addSUBTR_function(x): \n",
     "        return x+random_value\n",
-    "    funs = [sin,power_function,ln,exp,cos,tan,sqrt,cbrt,\n",
+    "    funs = [sin,power_function,ln,exp,cos,tan,sqrt,\n",
     "            scalar_function,addSUBTR_function]     \n",
     "    operations = [f(g(x)),f(x)+g(x),f(x)-g(x),f(x)/g(x),f(x)*g(x), f(x)/g(x)/h(x),f(x)*g(h(x)),\n",
     "                 f(g(h(x))),f(h(x))+g(x),f(h(x))-g(x),f(h(x))/g(x),f(x)/g(h(x)),f(h(x))*g(x), f(x)*g(x)*h(x)]\n",
@@ -153,7 +153,7 @@
     "        return x*random_value\n",
     "    def addSUBTR_function(x): \n",
     "        return x+random_value\n",
-    "    funs = [sin,power_function,ln,exp,cos,tan,sqrt,cbrt,\n",
+    "    funs = [sin,power_function,ln,exp,cos,tan,sqrt,\n",
     "            scalar_function,addSUBTR_function]     \n",
     "    operations = [f(g(x)),f(x)+g(x),f(x)-g(x),f(x)/g(x),f(x)*g(x)]\n",
     "    operation = operations[random.randrange(0,len(operations))]\n",