Tag Archives: Errors

Multiple Perturbed Collocation Tau-Method For Solving High Order Linear And Non-Linear Boundary Value Problems (Published)

This paper is concerned with the numerical solution of high order linear and nonlinear boundary value problems of ordinary differential equations by Multiple Perturbed Collocation Tau Method (MPCTM). In applying this method to the class of problems mentioned above, we assumed a perturbed approximate solution in terms of Chebyshev Polynomial basis function which is substituted into the special class of the problem considered. Thus, resulting into n-folds integration. After evaluation of n-fold integration, the resulting equation is then collocated at equally spaced interior points and the unknown constants in the approximate solution are then obtained by Gaussian elimination method which are then substituted back into the approximate solution. The proposed method is tested on several numerical examples, the approximate solutions is in agreement with the exact solution. The approximate results obtained by the proposed method confirm the convergence of numerical solutions and are compared favorably with the existing methods available in literature

Keywords: Accuracy, Boundary Value Problem, Chebyshev, Errors, Multiple, Perturbed, collocation

Wrong Usage as Threat to English Language in Nigeria (Published)

: English is a second language in Nigeria because it is non-indigenous, it was introduced by British Colonialists and Missionaries into the country. The roles and functions English language has assumed since its introduction into the country are outlined. Since Nigeria functions in virtually all spheres of life in English language, a variety known, internationally acceptable and intelligible exists as the Standard Nigerian English. What is really of concern is the increasing deviations noticeable in the speech and writings of Nigerians from the grammar of English. The error laden English spoken by many people in the country may well be replacing the Standard Nigerian English if the situation is not checked. The root causes of the problem are pointed out recommendations are made towards curbing the negative trend.

Keywords: English Language, Errors, Grammar, Mother tongue, Second Language, Standard Nigerian English, varieties of English

Multiple Perturbed Collocation Tau-Method For Solving High Order Linear And Non-Linear Boundary Value Problems (Published)

This paper is concerned with the numerical solution of high order linear and nonlinear boundary value problems of ordinary differential equations by Multiple Perturbed Collocation Tau Method (MPCTM).In applying this method to the class of problems mentioned above, we assumed a perturbed approximate solution in terms of Chebyshev Polynomial basis function which is substituted into the special class of the problem considered. Thus, resulting into n-folds integration. After evaluation of n-fold integration, the resulting equation is then collocated at equally spaced interior points and the unknown constants in the approximate solution are then obtained by Gaussian elimination method which are then substituted back into the approximate solution.The proposed method is tested on several numerical examples, the approximate solutions is in agreement with the exact solution. The approximate results obtained by the proposed method confirm the convergence of numerical solutions and are compared favorably with the existing methods available in literature.

Keywords: Accuracy, Boundary Value Problem, Chebyshev, Errors, Multiple, Perturbed, collocation

Tense And Aspect In The Era Of Competence-Based English Language Teaching in Cameroon’s Secondary Schools (Published)

This paper seeks to show the significance that should be given to tense and aspect as central grammatical features attached to the verb phrase, on the postulate that if tense and aspect are not mastered by the learners of English, in particular and the languages in general, they never build an acceptable sentence in the target language. Analysing the challenges that a French-speaking learner of English in particular can face with tense and aspect, the hypotheses were verified through two tests for 180 students in four secondary schools in Dschang. It became obvious that the target population had a serious problem with tense and aspect. Now what place should be given to tense and aspect in a new era where knowing the language is pushed to the background but not suppressed, and acting effectively with the language is the new order of the day?

Keywords: Aspect, Competence, Errors, Language Teaching, Secondary School, Tense