# A model that finds out y=2x^2+2
import tensorflow as tf
import numpy as np
from tensorflow import keras

model = tf.keras.Sequential([keras.layers.Dense(units=1, input_shape=[1])])

model.compile(optimizer='sgd', loss='mean_squared_error')

xs = np.array([-1.0, 0.0, 1.0, 2.0, 3.0, 4.0], dtype=float)
ys = np.array([4.0, 2.0, 4.0, 10.0, 20.0, 34.0], dtype=float)

model.fit(xs, ys, epochs=500)

print('weights:', model.weights)

# Should print 202
print(model.predict([10.0]))