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Matplotlib has a default color cycle for all the graphs and plots, however, in order to draw plots with multiple color cycles, we can use the cycler property of Matplotlib. It is used to plot repetitive patterns for the axis.First, we will use the Object Oriented APIs such as pyplot to plot the specific visualization.from cycler import cycler import numpy as np from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas from matplotlib.figure import Figure from IPython.core.display import displayIn this example, we will create two objects which will repeat the cycle after every four objects. Thus, after creating two objects, the last two ... Read More
Let us assume that we want to animate a nature of function which is exponentially decaying like y = a(b)^x where b = growth factor and a = initial value.An exponentially decay function would look like this, However, for now, we want to animate and plot the exponentially decaying tan function.First import the libraries, import numpy as np import matplotlib.pyplot as plt from matplotlib.animation import FuncAnimationDefine the axes, fig, a = plt.subplots()Plotting a blank figure with axes, xdata, ydata = [], [] line, = ax.plot(xdata, ydata)Set the limit of the grids, ax.set_xlim(0, 10) ax.set_ylim(-3.0, 3.0) ax.grid() Define the function to ... Read More
To create a custom marker on a plot or graph, we use a list where we write the markers we want to see in the plot. The markers are nothing but symbols, emoji, character or any character which we want to see on the figure.In order to create the marker, we will first import the required libraries.import matplotlib.pyplot as plt import numpy as npFor now, we will create a marker on a sine curve. Let us create the grid with size (12, 6), x = np.arange(1, 2.6, 0.1) y = np.sin(2 * np.pi * x) plt.subplots(figsize=(12, 6))Here we will create ... Read More
There are two types of operations that can be performed using regex, (a) search and (b) match. In order to use regex efficiently while finding the pattern and matching with the pattern, we can use these two functions.Let us consider that we have a string. regex match() checks the pattern only at the beginning of the string, while regex search() checks the pattern anywhere in the string. The match() function returns the match object if a pattern is found, otherwise none.match() – Finds the pattern only at the beginning of the string and returns the matched object.search() – Checks for ... Read More
In a given matrix, there are four objects to analyze the element position: left, right, bottom, and top.Breadth First Search is nothing but finding the shortest distance between the two elements of a given 2-D Matrix. Thus, in each cell, there are four operations we can perform which can be expressed in four numerals such as, '2' describes that the cell in the matrix is Source.'3' describes that the cell in the matrix is Destination.'1' describes that the cell can be moved further in a direction.'0' describes that the cell in the matrix can not be moved in any direction.On ... Read More
A Linked List is a linear data structure in which each node has two blocks such that one block contains the value or data of the node and the other block contains the address of the next field.Let us assume that we have a linked list such that each node contains the data and a pointer which is pointing to the next node of the linked list. The task is to segregate the given Linked List. Segregating the linked list means we have to separate the odd indexed nodes and even index nodes in the list.Approach to Solve this ProblemTo ... Read More
In a binary tree, each node contains two children, i.e., left child and right child. Let us suppose we have two binary trees and the task is to check if one of the tree can be obtained by flipping another tree by left of it or not.A Tree is Isomorphic if it can be obtained by flipping the other tree in its left side.For ExampleInput-1Output: IsomorphicExplanation: The given Tree-2 can be obtained by flipping the Tree-1 in the left side, thus the Tree is isomorphic.Approach to Solve this ProblemA recursive approach to solve this particular problem is that a Boolean function will ... Read More
In a given matrix, there are four objects to analyze the element position: left, right, bottom and top.Breadth First Search is nothing but finding the shortest distance between the two elements of a given 2-D Matrix. Thus in each cell, there are four operations we can perform which can be expressed in four numerals such as, '2' describes that the cell in the matrix is Source.'3' describes that the cell in the matrix is Destination.'1' describes that the cell can be moved further in a direction.'0' describes that the cell in the matrix can not be moved in any direction.On ... Read More
Let us consider that we have the root node of a binary tree; the task is to find and return the sum of tilt of every node.The tilt of a binary tree is nothing but constructing the binary tree by finding the absolute difference of child nodes in the left subtree and the right subtree in each level. At some particular level, the nodes which don't have any child nodes, we simply tilt by replacing that node with zero.ExampleInputOutput: 15Explanation: Finding the tilt at every level of the given binary tree, The tilt of node 3 = 0The tilt of node ... Read More
We are required to capture (convert into image) part(s) of our markup that lays out our website and save that captured image or do something with it. So, we are required to devise a way using which we can achieve this described behaviour.As our problem includes capturing any markup element and not just canvas, it’s a bit complex and especially if we plan to do it from scratch. Therefore, for our ease we will use a third party library, htmltocanvas that does exactly what the name suggests, converting the desired markup to canvas, after which we can simply download the canvas ... Read More