1. Keras 모델을 만드는 여러 가지 표현방법1-1. Sequential 방식import tensorflow as tffrom tensorflow import kerasimport numpy as npimport matplotlib.pyplot as pltmodel = tf.keras.models.Sequential()model.add(tf.keras.layers.Dense(2, input_shape=[2]))model.add(tf.keras.layers.Dense(2))x_1 = tf.constant([1,2])x_2 = tf.constant([[1,2]])model(x_2) model.predict(x_2)model.call(x_2)model.summary() tf.keras.models.Sequ..