F1(x) round down ((x-4)³) F2(x)=tan(ex-6) F3(x) = 4|log2 cos ¹(x-9)| For the above functions do the following: ● ● Make a column vector A that contains the three functions A = Find the maximum and the minimum of each function using one command line (use matrix A). Plot the three functions (from x-2 to x-8 with an increment of 0.1) on the same figure in one command line (no subplots). Give a title, x axis label, y axis label, and a legend for the figure

F1(x) round down ((x-4)³) F2(x)=tan(ex-6) F3(x) = 4|log2 cos ¹(x-9)| For the above functions do the following: ● ● Make a column vector A that contains the three functions A = Find the maximum and the minimum of each function using one command line (use matrix A). Plot the three functions (from x-2 to x-8 with an increment of 0.1) on the same figure in one command line (no subplots). Give a title, x axis label, y axis label, and a legend for the figure

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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POCO SHOT ON POCо X2 matrix (M) without using max ( ) function? 012: Given x=[761 2 0 -1 4 3 -2 0] what are the commands that will execute the following operations: a. Sets the negative values of x to zero. b. Extract the values of x greater than 3 in a vector y. c. Add 3 to the values of x that are even. d. Set the values of x that are less than the mean to zero. e. Set the values of x that is greater than the mean to their difference with the mean. Zena Ahmed Alwan 2020-2021
1. Write your own R. command for mean and standard deviation in one function. 2. Test your function and built in function in R for the following vector score<-c(80,67,88,76,66,68) ². 3. Write a function of 4. Write a function to plot a scatter plot. 5. Test your function to "iris" data. Let Sepal.Length be the dependent variable and Petal.Length the independent variable.
Define a function make_derivative that returns a function: the derivative of a function f. Assuming that f is a single- variable mathematical function, its derivative will also be a single-variable function. When called with a number a, derivative will estimate the slope of f at point (a, f(a)). the Recall that the formula for finding the derivative of f at point a is: f'(a) = lim h→0 where h approaches 0. We will approximate the derivative by choosing a very small value for h. The closer h is to 0, the better the estimate of the derivative will be. def make_derivative (f): """Returns a function that approximates the derivative of f. >>> def square (x): f(a+h)-f(a) h Recall that f'(a) = (f(a + h) - f(a)) / h as h approaches 0. We will approximate the derivative by choosing a very small value for h. # equivalent to: square = lambda x: x*X return x*x >>> derivative = make_derivative (square) >>> result = derivative (3) >>> round (result, 3) # approximately 2*3 6.0 |||||| h=0.00001 "***…
Play and practice all the functions that we listed here. What I would like you to do is to first create three vectors---a logic vector, a double vector, and a character vector, for example, x1 = c( TRUE, FALSE, TRUE) x2 = c( 0, -2.5, 1, 3, 5.9 ) x3 = c( "a1", "a2", "za", "zz", "0", "1") and apply each function to all three vectors to see what would happen. If the function requires more than one input x, then you just create other objects as needed. sum (x) sum of the elements of x prod (x) product of the elements of x max (x) maximum of the elements of x min(x) minimum of the elements of x which. max (x) returns the index of the greatest element of x which. min(x) returns the index of the smallest element of x range (x) id. than c (min(x), max (x)) length (x) number of elements in x mean (x) mean of the elements of x median (x) median of the elements of x round (x, n) rounds the elements of x to n decimals rev…
Consider a 6-bit two’s complement representation. Fill in the box with question mark "?" in the following table. You don't need to care about "n/a." Number Binary Representation TMin + TMin ? Please input the binary representation in this format xxxxxx. For example, if the answer is 010010, please input 010010.
A university assigns student IDs of the form 1, 2, 3, ... such that if n students are currently enrolled, then the next student to enroll will receive and ID of n + 1. Consider the following algorithm that accomplishes this. // Global variable storing number of students currently enrolled current_student_count = 0 // Function that reads the above global variable, calculates new ID, and increments the global count assign_new_id(): count = current_student_count new_id = count + 1 current_student_count = count + 1 return new_id (a) If two different threads run the above code in parallel to enroll two different students, it is possible for the two students to receive the same ID, and for the current_student_count to have a wrong value. Explain how this is possible. (b) Modify the code above so that the problem in (a) does not happen.
Solve using python please
Matlab
Use the numerical differentiation to compute the derivative of the function below: f(x) : 2x* – 4x2 + x %3D - Given an arbitary value x = a, compute the derivative f' (x = a) with step size h using the central difference numerical approximation. In [ ]: # Complete the function given the variables a,h and return the value as "fprime". ## Don't change the predefined content, only fill your code in the region "YOUR CODE" def derivative(a,h): 'Compute the difference formula for f'(a) with step size h. Parameters а : number Compute derivative at x = a h number Step size in difference formula Step 1: define the function f(x) based on the given function above Step 2: use the central difference formula for calculating the f'(a) # your code here return fprime # # Make sure in your solution, you use the same name "fprime" for the output
Below are definitions for five different functions, each labelled f. We fix some integer x, and use this x as input for each of the functions below. Match each function definition with the result obtained by calling f(x). f=lambda x: max([i%10 for i in range(x)]) f=lambda x: len(str(type(x))) def f(x): if x<=0: return 1 else: return x*f(x-10) f=(lambda y: (lambda x: 2*x) (y+1)) def f(x): while x%5!=0: X=X+1 return x ✓ Choose... 28 13 9 39 15 Choose... Choose... Choose...