Answered: Python Program to find roots of a…

Engineering

Computer Science

Python Program to find roots of a Quadratic Equation

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter3: Assignment, Formatting, And Interactive Input

Section3.1: Assignment Operations

Problem 14E: (General math) The area of an ellipse (see Figure 3.5) is given by this formula: Area=ab Using this...

See similar textbooks

Similar questions

(Transportation) Road construction requires estimating the expected loads on a road’s pavement over its design life. A common approach for determining this information is to use ESAL values; one ESAL is the load a single 18,000-lb (80,000 N) single-axle truck applies to the road’s surface. The ESAL value for any single-axle vehicle can be approximated by this formula: ESAL=[W18,000]4 ESAL is the equivalent single-axle load. W is the vehicle’s weight (lbs). Using this formula, write, compile, and run a C++ program that determines ESAL values and use it to complete the following chart. The ESAL values should be output in a field width of 10, with six digits after the decimal point.
(Mechanics) The deflection at any point along the centerline of a cantilevered beam, such as the one used for a balcony (see Figure 5.15), when a load is distributed evenly along the beam is given by this formula: d=wx224EI(x2+6l24lx) d is the deflection at location x (ft). xisthedistancefromthesecuredend( ft).wistheweightplacedattheendofthebeam( lbs/ft).listhebeamlength( ft). Eisthemodulesofelasticity( lbs/f t 2 ).Iisthesecondmomentofinertia( f t 4 ). For the beam shown in Figure 5.15, the second moment of inertia is determined as follows: l=bh312 b is the beam’s base. h is the beam’s height. Using these formulas, write, compile, and run a C++ program that determines and displays a table of the deflection for a cantilevered pine beam at half-foot increments along its length, using the following data: w=200lbs/ftl=3ftE=187.2106lb/ft2b=.2fth=.3ft
(Heat transfer) The formula developed in Exercise 5 can be used to determine the cooling time, t, caused only by radiation, of each planet in the solar system. For convenience, this formula is repeated here (see Exercise 5 for a definition of each symbol): t=Nk2eAT3fin A=surfaceareaofasphere=4r2 N=numberofatoms=volumeofthespherevolumeofanatom Volume of a sphere sphere=43radius3 The volume of a single atom is approximately 11029m3 . Using this information and the current temperatures and radii listed in the following chart, determine the time it took each planet to cool to its current temperature, caused only by radiation.
(Computation) Among other applications, Pascal’s triangle (see Figure 7.22) provides a means of determining the number of possible combinations of n things taken r at a time. For example, the number of possible combinations of five people (n = 5) taken two at a time (r=2)is10. Each row of the triangle begins and ends with 1. Every other element in a row is the sum of the element directly above it with the element to the left of the one above it. That is, element[n][r]=element[n1][r]+element[n1][r1] Using this information, write and test a C++ program to create the first 11 rows of a twodimensional array representing Pascal’s triangle. For any given value of n less than 11 and r less than or equal to n, the program should display the correct element. Use your program to determine in how many ways a committee of 8 can be selected from a group of 10 people
(General math) a. Write, compile, and run a C++ program to compute and display the value of the second-order polynomial ax2+bx+c for any user-entered values of the coefficients a, b, c, and the variable x. Have your program display a message to inform users what the program does, and then display suitable prompts to alert users to enter the data. (Hint: Use a prompt such as Enter the coefficient of the x-squared term:.) b. Check the result of your program written for Exercise 7a by using the following test data: Testdataset1:a=0,b=0,c=22,x=56Testdataset2:a=0,b=22,c=0,x=2Testdataset3:a=22,b=0,c=0,x=2Testdataset4:a=2,b=4,c=5,x=2 After finishing your verification, use your program to complete the following chart
(Statics) An annulus is a cylindrical rod with a hollow center, as shown in Figure 6.7. Its second moment of inertia is given by this formula: I4(r24r14) I is the second moment of inertia (m4). r2 is the outer radius (m). r1 is the inner radius (m). a. Using this formula, write a function called annulusMoment ( ) that accepts two double-precision numbers as parameters (one for the outer radius and one for the inner radius), calculates the corresponding second moment of inertia, and displays the result. b. Include the function written in Exercise 5a in a working program. Make sure your function is called from main(). Test the function by passing various data to it.
(Debug) Determine and correct the errors in the following programs. a.includeiostreamusingnamespacestd;intmain()width=15area=lengthwidth;coutTheareaisareab.includeiostreamusingnamespacestd;intmain()intlength,width,area;area=lengthwidth;length=20;width=15;coutTheareaisarea;return0;c.includeiostreamintmain()intlength=20;width=15,area;lengthwidth=area;coutTheareais,area;return0;
(Thermodynamics) a. Design, write, compile, and run a program that determines the work,W, performed by a piston engine providing a force of 1000 N over a distance of 15 centimeters. The following formula is used to determine the work performed: W=Fd F is the force provided by the piston in Newtons. d is the distance the piston moves in meters. b. Manually check the values computed by your program. After verifying that your program is working correctly, modify it to determine the work performed by six pistons, each providing a force of 1500 N over a distance of 20 centimeters.
(General math) The value of p can be approximated by this series: 4(113+1517+....) Using this formula, write a program that calculates and displays the value of , using 2, 3, and 4 terms of the series.
(Statics) A beam’s second moment of inertia, also known as its area moment of inertia, is used to determine its resistance to bending and deflection. For a rectangular beam (see Figure 6.6), the second moment of inertia is given by this formula: Ibh3/12 I is the second moment of inertia (m4). b is the base (m). h is the height (m). a. Using this formula, write a function called beamMoment() that accepts two double- precision numbers as parameters (one for the base and one for the height), calculates the corresponding second moment of inertia, and displays the result. b. Include the function written in Exercise 4a in a working program. Make sure your function is called from main(). Test the function by passing various data to it.
Redo Programming Exercise 8 using dowhile loops.
(Numerical) Determine and write an algorithm to sort four numbers into ascending (from lowest to highest) order.