def test_calculate_deriative_with_special_function(self):
exp = self.op_factory.operation("*", math_library.number(5), self.var1)
exp = self.op_factory.operation("+", exp, math_library.number(2))
exp = self.func_factory.get_function("sin", exp)
exp = exp.derive(self.var1)
exp = exp.eval(self.var1, math_library.number(2))
self.assertAlmostEqual(exp.print(), 4.21926979366)
def test_calculate_deriative_simple_variable(self):
exp = self.op_factory.operation("*", math_library.number(5), self.var1)
exp = self.op_factory.operation("*", exp, self.var1)
exp = self.op_factory.operation("+", exp, math_library.number(2))
exp = self.op_factory.operation("+", exp, self.var2)
exp = exp.derive(self.var2)
self.assertEqual(exp.print(), 1)
def test_calculate_two_variable(self):
exp = self.op_factory.operation("*", math_library.number(5), self.var1)
exp = self.op_factory.operation("*", exp, self.var1)
exp = self.op_factory.operation("+", exp, math_library.number(2))
exp = self.op_factory.operation("+", exp, self.var2)
exp = exp.eval(self.var1, math_library.number(2))
exp = exp.eval(self.var2, math_library.number(3))
self.assertEqual(exp.print(), 25)
def test_calculate_special_function(self):
exp = self.op_factory.operation("*", math_library.number(5), self.var1)
exp = self.op_factory.operation("*", exp, self.var1)
exp = self.op_factory.operation("+", exp, math_library.number(2))
exp = self.op_factory.operation("+", exp, self.var2)
exp = self.func_factory.get_function("sin", exp)
exp = exp.eval(self.var1, math_library.number(2))
exp = exp.eval(self.var2, math_library.number(3))
self.assertAlmostEqual(exp.print(), -0.13235175009)
def test_calculate_deriative_with_user_defined_function_with_variable_non_zero_order(
self):
exp = self.op_factory.operation("*", math_library.number(5), self.var1)
exp = self.op_factory.operation("*", exp, self.var1)
exp = self.op_factory.operation("+", exp, math_library.number(2))
exp = self.op_factory.operation("+", exp, self.var2)
self.func_factory.add_function("simple_function2", exp)
exp = self.func_factory.get_function("simple_function2")
func_input2 = self.op_factory.operation("*", math_library.number(3),
self.var1)
exp = exp.eval(self.var2, func_input2)
exp = exp.eval(self.var1, math_library.number(3))
self.assertEqual(exp.print(), 56)
def test_calculate_deriative_with_user_defined_function(self):
exp = self.op_factory.operation("*", math_library.number(5), self.var1)
exp = self.op_factory.operation("*", exp, self.var1)
exp = self.op_factory.operation("+", exp, math_library.number(2))
exp = self.op_factory.operation("+", exp, self.var2)
self.func_factory.add_function("simple_function", exp)
exp = self.func_factory.get_function("simple_function")
exp = self.op_factory.operation("*", exp, self.var1)
exp = self.op_factory.operation("+", exp, math_library.number(5))
exp = exp.derive(self.var1)
exp = exp.eval(self.var1, math_library.number(3))
exp = exp.eval(self.var2, math_library.number(10))
self.assertEqual(exp.print(), 147)