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To plot a smooth line with matplotlib, we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Create a list of data points, x and y.Plot the x and y data points.Create x_new and bspline data points for smooth line.Get y_new data points. Compute the (coefficients of) interpolating B-spline.Plot x_new and y_new data points using plot() method.To display the figure, use show() method.Exampleimport numpy as np from matplotlib import pyplot as plt from scipy import interpolate # Set the figure size plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True # x ... Read More
In this problem, we are given string str[] of size N and an integer X. Our task is to create a program to print First X vowels from a string.We will print first X vowels from the string and if less than X vowels are present, print -1.Let's take an example to understand the problem, Input: str = "learn C programming language", X = 5 Output: e, a, o, a, i Vowels are a, e, i, o, uSolution ApproachA simple solution to the problem is by traversing the string character by charter. And storing all the vowels of the string ... Read More
In 3D computer graphics, a voxel represents a value on a regular grid in three-dimensional space. We can say a voxel is a 3D equivalent of a pixel that is used in 2D. A pixel is a square inside of a 2D image with a position in a 2D grid and a single color value, whereas a voxel is a cube inside of a 3D model with a position inside a 3D grid and a single color value.To represent voxels with matplotlib, we can take the following steps −StepsSet the figure size and adjust the padding between and around the ... Read More
In this problem, we are given an array of string str[] of size N. Our task is to create a program for finding the first string from the given array whose reverse is also present in the same array.Let's take an example to understand the problem, Input: str[] = ["python", "program", "C#", "language", "#C"] Output: C#Solution ApproachOne way to solve the problem is by directly traversing each element of the string array and checking for revere of the string in the remaining array. Return the string if the reverse is found. If the whole array is traversed and no string ... Read More
To avoid line color repetition in matplotlib.pyplot we can take the following steps −StepsSet the figure size and adjust the padding between and around the subplots.Create x and y data points using numpy.Plot the x and y data points using plot() method.In the plot() method, use a unique hexadecimal value for the color attribure, for example, color="#980ab5" to set the graph in a unique color. You can also specify a particular color of your choice, for example, color="green".To display the figure, use show() method.Exampleimport numpy as np from matplotlib import pyplot as plt # Set the figure size plt.rcParams["figure.figsize"] ... Read More
To visualize values on logarithmic scale on matplotlib, we can use yscale('log').StepsImport matplotlib nd numpy.Set the figure size and adjust the padding between and around the subplots.Create x and y data points using numpy.Use yscale('log') to visualize the values on a logarithmic scale.Plot x and y data points using plot method.Place a legend on the figure.To display the figure, use show() method.Exampleimport numpy as np from matplotlib import pyplot as plt # Set the figure size plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True # x and y data points x = np.linspace(1, 100, 1000) y = np.log(x) ... Read More
In this problem, we are given a linked list LL of size N. Our task is to create a program for finding non-repeating in linked list.Linked list is a sequence of data structures, which are connected together via links.Let's take an example to understand the problem, Input: LL = 4 => 6 => 2 => 4 => 1 => 2 => 6 => 5 Output: 1Explanation −The elements with a single occurrence frequency are 1 and 6. Out of these 1 occurred first in the linked list. Solution ApproachAn approach to solve the problem is by creating a hash table ... Read More
In this problem, we are given an array arr[] consisting of N integer values and a window of size N. Our task is to create a program for finding the first negative integer in every window of size k. We will be printing the first negative number if it exists otherwise print 0, denoting no negative exists.Let's take an example to understand the problem, Input: arr[] = {-2, 2, -1, 4, 3, -6}, k = 2 Output: -2, -1, -1, 0, -6Explanation −Size of window k = 2, {-2, 2}, first negative is -2 {2, -1}, first negative is -1 ... Read More
To plot multiple horizontal bars in one chart with matplotlib, we can take the following steps −StepsImport the libraries pandas, matplotlib, and numpy.Set the figure size and adjust the padding between and around the subplots.Create an array for horizontal bar's position.Initialize a variable width for bar's width.Create a horizontal bar plot.Set Y-axis ticks and tick labels with some limit.Place a legend on the plot at the upper right location.To display the figure, use show() method.Exampleimport pandas import matplotlib.pyplot as plt import numpy as np # Set the figure size plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True # Array ... Read More
To shift the colorbar position to right in matplotlib, we can take the following steps −StepsImport numpy and matplotlib.Set the figure size and adjust the padding between and around the subplots.Initialize a variable N to store the number of sample data.Create x and y data points using numpy.Create a scatter plot using scatter() method with x and y data points.Add a colorbar to a plot, use the pad value for horizontal shift towards right or left.To display the figure, use show() method.Example# Import numpy and matplotlib import numpy as np from matplotlib import pyplot as plt # Set the ... Read More