Function 4: Class Grading function _four ( array ) Create a JavaScript function that meets the following requirements: • Receives a variable length array of numbers, representing student grades in a course The function traverses the array to determine the number of passing and failing grades. o A passing grade, is grade greater than or equal to 50 The function displays the count (console log) for the number passing grades, failing grades and overall class average as illustrated below Average class grade is rounded to 1 decimal point The function returns the array containing the number of passing grades, the number of failing grades, and the overall averages of the grades, respectively, back to the caller |Calling _four([50,51,80,45]) The number of passing grades: 3, failing grades: 1, and class average: 56.5 Calling _four([35,45,25,10,6,33]) The number of passing grades: 0, failing grades: 6, and class average: 25.7 Calling _four([80,90]) The number of passing grades: 2, failing grades: 0, and class average: 85.0

Use the cubicSpline module to write programs that interpolate between a given data point with a cubic spline. The program must be able to evaluate the interpolant for more than one x value. As a test, use the data points specified in the previous Example and calculate the interpolants at x = 1.5 and x = 4.5 (due to symmetry, these values must be the same) import numpy as np from cubicSpline import * xData = np.array([1,2,3,4,5], float) yData = np.array([0,1,0,1,0], float) k = curvatures (xData, yData) while True: try: x = eval(input("\nx ==> ")) except SyntaxError: break print("y=", evalSpline (xData, yData, k, x)) input ("Done. Press return to exit") Exercise Fix the Cubic Spline Program There is an error in the Cubic Spline program, fix it and evaluate the values of x 1/2 = 1.5 and x = 4.5, where the results of both values must be the same.

Create a function in MATLAB that does the following without utilising any of the program's built-in functions (don't use dec2bin or any of the others): Perform the conversion from decimal to binary, octal, or hexadecimal for an integer. Converting from binary, octal, or hexadecimal to decimal is another important step.

USING C++ Please fix the errors in the code (image attached) with the failed test warning (image attached). Thank you! Write a program that removes all non-alphabetic characters from the given input. Ex: If the input is: -Hello, 1 world$! the output is: Helloworld Your program must define and call the following function that takes a string as a parameter and returns the string without any non-alphabetic characters.string RemoveNonAlpha(string userString)

IN JAVA Write a function that takes in user input as a string. For all characters which are numeric, double its value and, if it is two digits, then replace it with the sum of its digits (e.g., 6 → 12 → 3 whereas 3 → 6). For all characters which are in uppercase, replace it with lowercase. For all characters which are in lowercase, replace it with uppercase (e.g., m → M and N → n).  The program should keep asking the user to enter strings until they either enter ‘q’ or ‘Q’.

The Python print function supports other keyword parameters besidesend. One of these other keyword parameters is sep. What do you thinkthe sep parameter does? Hint: sep is short for separator. Test your ideaeither by trying it interactively or by consulting the Python documentation.

In Python language, define a function that takes two parameters count and sum as the parameters and returns the average from the function. Also, make a call to the function for some sample test cases.

Use Matlab to write a function that calculates the area of a triangle given length of the three edges.

python help... Write a function justVowels() that takes a string as a parameter and returns a new string that contains all the vowels found in the parameter string. The vowels in the returned string should appear in the same order as they did in the parameter string. A vowel is one of a, e, i, o, or u. both the upper- and lower-case vowels should be included. The characters in the returned string should have the same capitalization as they did in the parameter string. If the function is given a string without any vowels or an empty string, it should return the empty string. Use the if-else condition with iterate loop pattern. Don’t forget to include the docstring and comments.    How it should run... >>> justVowels('Did you include your collaboration statement') 'iouiueouoaoaioaee' >>> justVowels('If you did not include your collaboration statement no points') 'Iouioiueouoaoaioaeeooi' >>> justVowels('1,2,3,4,...') '' >>> justVowels('') ''

Write a function definition for a bool function called isEven. This function takes an integer value parameter, and returns boolean value true if the parameter is even and false if it is odd. Write a simple driver program to test your function. Show your full source code and a screenshot of your output.