The with statement replaces former try…finally blocks in Python. It ensures that clean-up code is executed. For example, it closes open files before leaving the block. Consider this code example (assuming this code is stored in a file named ‘code.py’): The output of this code would be the code itself (for nerds: a piece of …
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The NumPy arccos() function is the trigonometric inverse cosine function so that, if y = cos(x), then x = arccos(y). If you apply it to a NumPy array, it performs the function element-wise. Arguments Type Description x array_like x-coordinate on the unit circle. For real arguments, the domain is [-1, 1]. out ndarray, None, or …
Python is powerful — you can condense many algorithms into a single line of Python code. So the natural question arises: can you write a while loop in a single line of code? This article explores this mission-critical question in all detail. How to Write a While Loop in a Single Line of Python Code? …
Problem: Given a collection. You want to create a new list based on all values in this collection. The code should run in a single line of code. How do you accomplish this? Do you need a lambda function? Example: Given an array a = [1, 2, 3, 4]. You need to create a second …
The NumPy argpatition function performs an indirect partition along the given axis using the algorithm specified by the kind keyword. It returns an array of indices of the same shape as a that index data along the given axis in partitioned order. Arguments Type Description c array_like or poly1d object The input polynomials to be …
This tutorial will teach you how to write one-line for loops in Python using the popular expert feature of list comprehension. After you’ve learned the basics of list comprehension, you’ll learn how to restrict list comprehensions so that you can write custom filters quickly and effectively. Are you ready? Let’s roll up your sleeves and …
Python is powerful — you can condense many algorithms into a single line of Python code. So the natural question arises: can you write a for loop in a single line of code? This article explores this mission-critical question in all detail. How to Write a For Loop in a Single Line of Python Code? …
The numpy.polymulx function multiplies the polynomial c with a value x which is the independent variable. Arguments Type Description c array_like or poly1d object The input polynomials to be multiplied The following table shows the return value of the function: Type Description Return Value ndarray or poly1d object The polynomial resulting from the multiplication of …
The numpy.polymul function finds the product (multiplication) of two polynomials a1 and a2. As an input, use either poly1d objects or one-dimensional sequences of polynomial coefficients. If you use the latter, arange this polynomial sequence naturally from highest to lowest degree. Arguments Type Description a1, a2 array_like or poly1d object The input polynomials to be …
What if you have a ternary operator that’s very long? Problem: How to write the ternary operator in multiple lines? Short Recap: Ternary Operator Ternary Operator: The most basic ternary operator x if c else y consists of three operands x, c, and y. It is an expression with a return value. The ternary operator …
Problem: How to write the ternary operator in a lambda function? Example: Say, you’ve got the following example: The function f(x) takes one argument x and increases it by 10% if the argument is larger than 100. Otherwise, it increases it by 5%. In this article, you’ll learn how to convert this code snippet into …