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# Computational graph

A computational graph is a series of TensorFlow operations, also known as ops, arranged into a graph of nodes. The following two principle steps are used by TensorFlow Core:

1. Define a computational graph
2. Run the computational graph

Let's try to understand this concept with a very simple example. Let's say that you have a function with two variables, x and y as shown in the following screenshot: We will use the preceding formula to calculate or to build a computational graph for the actual value of this function when you pass the values 3 and 2 for x and y respectively:

Now, let's build a computational graph for actually ...

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