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This article mainly introduces "introduction and usage of ufunc general functions". In daily operation, I believe many people have doubts about the introduction and usage of ufunc general functions. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "introduction and usage of ufunc general functions". Next, please follow the editor to study!

A brief introduction to 0jinnumpy

Numpy is the basic package for high-performance scientific computing and data analysis.

Most of the underlying code is written in C language and runs fast.

Strongly support the vectorized programming style, effectively replace the loop.

There are more data types than python.

The three commonly used objects in numpy are ndarray,matrix and ufunc

In this section, we introduce ufunc generic functions. The summary of ufunc is as follows:

Many of the functions in numpy are ufunc-- universe function.

They can automatically vectorize array without the need for map.

The efficiency of vectorization is higher than that of for and map, and the broadcast feature is supported.

Users can convert ordinary python functions into ufunc functions.

First, use the ufunc function

Second, construct ufunc function

Frompyfunc function can convert ordinary python function into ufunc function.

The vectorize function is a further encapsulation of the frompyfunc function, which is more convenient to use.

Third, the advantages of ufunc

1 the speed of circular computation by vectorization is usually faster than that of for and map

For example: testing three methods to find sin for each element in x = range (1000000)

2the dint ufunc function supports the broadcast feature.

At this point, the study of "introduction and usage of ufunc general functions" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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