scholarly journals PEMBUATAN APLIKASI PEMBELAJARAN PENCARIAN AKAR PERSAMAAN

2013 ◽  
Vol 9 (1) ◽  
Author(s):  
Amanda A. Diadema ◽  
Gunawan Santosa ◽  
Nugroho Agus Haryono

In numerical methods, finding the root of an equation involves iterations to find an estimated root approximating the original root. Several methods that can be used to find the root are Fixed-Point Iteration Method, Newton-Raphson Method, Secant Method and the Muller Method. This learning software is developed to provide a learning media for students to learn how to find the root of an equation. It contains animated explanation of the study material, case study and exercises. The software then tested to users using Usability Test, namely compatibility, consistency, flexibility, learnability, perceptual limitation, and minimal action. Tests performed to undergraduate students who have learned how to find equation root yield these results: Compatibility 86.13%, Consistency 83.73%, Flexibility 84.23%, Learnability 81.87%, Minimal Action 84.80%, and Perceptual Limitation 85.07%. On the other hand, tests performed to undergraduate students who have never learned how to find equation root yield these results: Compatibility 85.33%, Consistency 86.67%, Flexibility 83.47%, Learnability 85.87%, Minimal Action 87.20%, and Perceptual Limitation 82.67%.

Author(s):  
Qani Yalda

The main purpose of this paper is to obtain the real roots of an expression using the Numerical method, bisection method, Newton's method and secant method. Root analysis is calculated using specific, precise starting points and numerical methods and is represented by Maple. In this research, we used Maple software to analyze the roots of nonlinear equations by special methods, and by showing geometric diagrams, we examined the relevant examples. In this process, the Newton-Raphson method, the algorithm for root access, is fully illustrated by Maple. Also, the secant method and the bisection method were demonstrated by Maple by solving examples and drawing graphs related to each method.


Author(s):  
Sadaf Ilias ◽  
Jill Barber

This case study describes a recent learning activity involving pharmacy undergraduate students in which a final (fourth) year student trained 21 second year students to administer questionnaires about antibiotic resistance to over 700 student users of a large university building. The aim was to raise awareness of the problem of antibiotic resistance.  The second year students were also trained to correct any misapprehensions held by the questionnaire participants about antibiotic resistance, and to encourage them to become "Antibiotic Guardians". Finally the 22 students analysed the data to give a picture of what the other students understood about antibiotic resistance.  Peer-assisted learning therefore cascaded from a single fourth year student to 21 second year students and then to 700 students from various disciplines and year groups.  The first stage of the cascade was evaluated and the 21 second year students overwhelmingly believed that their knowledge of antibiotic resistance was enhanced.  A follow-up study using the same questionnaire will be used to determine whether the exercise was effective in raising awareness of antibiotic resistance among the body of students surveyed.


Author(s):  
Hossep Dolatian ◽  
Nate Koser ◽  
Jonathan Rawski ◽  
Kristina Strother-Garcia

We demonstrate a computational restriction on iterative prosody in phonology by using logical transductions. We show that the typology is fundamentally local but requires output recursion, formulated via quantifier-free transductions and least-fixed-point operators, respectively. We focus on two case studies from iterative prosody. One is iterative secondary stress. The other is more complex: iterative syllabification and epenthesis in Arabic dialects. The second case study involves formalizing Ito (1989)'s analysis of directional syllabification.


2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Mohammed Rasheed ◽  
Suha SHIHAB

<p>In the present work, a modified method is utilized to find the real roots of nonlinear equations of a single-diode PV cell by combining the modified Aitken's extrapolation method (MAEM), Aitken's extrapolation method (AEM) and the Newton-Raphson method (NRM), describing, and comparing them. The extrapolation method (MAEM) and (AEM) in the form of Aitken –acceleration is applied for improvement the convergence of the iterative method (Newton-Raphson) technique. Using a new improve to Aitken technique on (NRM) enables one to obtain efficiently the numerical solution of the single-diode solar cell nonlinear equation. The speed of the proposed method is compared with two other methods by means of various values of load resistance (R) in the range between R ∈ [1, 5] and with the given voltage of the cell  as an initial value in ambient temperature. The results showed that the proposed method (MAEM) is faster than the other methods (AEM and NRM).</p>


Author(s):  
Adeyinka Tella ◽  
M. T. Bashorun

This study examined the attitude of the students towards computer-based test (CBT) at the University of Ilorin, Nigeria. A case study research design was adopted to carry out the study. The sample consists of 2209 undergraduate students selected from seven out of the ten Faculties that made up the university. Data were collected through a computer based test attitudinal survey (CBTAS) and a focus group discussion. The results demonstrated that; generally, respondents have positive attitude towards CBT. More than average of the respondents prefer CBT to paper and pencil test. Respondents also demonstrate strong perception of increase in their learning performance as a result of taking CBT/examination. On the other hand, problems such as shortage of computers, lack of skills, loss of data in the process of writing CBT, slow network and hazard of reading on the screen were identified.


1992 ◽  
Vol 114 (1) ◽  
pp. 42-46 ◽  
Author(s):  
Huang Ping ◽  
Wen Shizhu

Micro-EHL problems of line contact have been solved by Newton-Raphson method. The results are given from the zero roughness amplitude to the value higher than the film thickness in the smooth surface solution. With the increase of the roughness amplitude, cavitations may be found inside the contact region. This situation is predicted by a critical roughness amplitude. The solutions are also given after the roughness exceeds to the critical value. From the results it is found that the film thickness is still thick enough even if the roughness is very high. The other factors to influence on the pressure and film thickness, such as loads, roughness wavelengths and oil compressibility, are considered as well.


Author(s):  
Dr. Roopa K M ◽  
◽  
Venkatesha P ◽  

The aim of this article is to present a brief review and a numerical comparison of iterative methods applied to solve the polynomial equations with real coefficients. In this paper, four numerical methods are compared, namely: Horner’s method, Synthetic division with Chebyshev method (Proposed Method), Synthetic division with Modified Newton Raphson method and Birge-Vieta method which will helpful to the readers to understand the importance and usefulness of these methods.


2017 ◽  
Vol 1 (1) ◽  
pp. 95
Author(s):  
Siti Nurhabibah Hutagalung

Abstract - The study of the characteristics of non-liier functions can be carried out experimentally and theoretically. One part of theoretical analysis is computation. For computational purposes, numerical methods can be used to solve equations complicated, for example non-linear equations. There are a number of numerical methods that can be used to solve nonlinear equations, the Newton-Raphson method. Keywords - Numerical, Newton Raphson.


Sign in / Sign up

Export Citation Format

Share Document