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# PyTorch Introduction —Tensors and Tensor Calculations | by Ivo Bernardo | Nov, 2023

## Find out about Tensors and the best way to use them in one of the crucial well-known machine studying libraries, pytorch

One in every of most vital libraries within the Deep Studying discipline (and inclusively, the place ChatGPT was constructed upon) is `pytorch`. Together with the Tensorflow framework, `pytorch` is without doubt one of the most well-known neural community coaching frameworks out there for software program builders and information scientists. Aside from its usability and easy API, it excels in flexibility and reminiscence utilization, making it extraordinarily quick in multi-dimensional calculus (one of many main elements behind backpropagation, the vital method that’s used to optimize Neural Community’s weights) — these particulars make it one of the crucial wanted libraries by corporations in relation to construct Deep Studying fashions.

On this weblog submit, we’re going to examine some primary operations utilizing `pytorch`and perceive how we will work with the `tensor` object! Tensors are mathematical representations of knowledge which can be generally addressed by totally different names:

• 1 aspect Tensor: generally known as the scalar, consists of a single mathematical worth.
• 1-Dimensional Tensor: consisting of n examples, they’re usually known as 1-D vectors and shops totally different mathematical parts in a single dimension.
• 2-Dimensional Tensors: generally known as matrices, are capable of retailer information in two dimensions. Consider a standard SQL desk or an excel spreadsheet.
• 3-Dimensional Tensors and past: Information organized with this dimensionality are usually tougher to visualise and are typically known as n-dimensional tensors.

With this small introduction on mathematical ideas, let’s discover the best way to use `pytorch` in Python!

As we’ve described, the tensor object is a mathematical generalization of n-dimensional objects that may develop to just about any dimension. Though within the context of Deep Studying, `tensors` are typically multidimensional, we will additionally create single aspect tensors (usually known as scalars) utilizing `torch` (though named `pytorch` , we use the identify `torch` to control the library in Python).