We present a new method to calculate the focal value of ordinary differential equation by applying the theorem defined the relationship between the normal form and focal value,with the help of a symbolic computation l...We present a new method to calculate the focal value of ordinary differential equation by applying the theorem defined the relationship between the normal form and focal value,with the help of a symbolic computation language M ATHEMATICA,and extending the matrix representation method.This method can be used to calculate the focal value of any high order terms.This method has been verified by an example.The advantage of this method is simple and more readily applicable.the result is directly obtained by substitution.展开更多
Questions can be classified from different perspectives： grammatical form, communicative value, content orientation and cognitive level. In language pedagogy, text-based questioning as both an attention drawing devic...Questions can be classified from different perspectives： grammatical form, communicative value, content orientation and cognitive level. In language pedagogy, text-based questioning as both an attention drawing device and a form of learning tasks serves text instruction. Therefore, language teachers preparing text-based questioning should take into consideration all dimensions of questions, especially cognitive requirement and communicative character. In addition, interaction between learner, text and the world can be achieved by the adoption of both about-the-text and beyond-the-text questions in teachers＇ text-based question construction.展开更多
We obtain effective lower bounds for certain linear combinations of the valuesat algebraic points of a class of p-adic G-functions defined over a completion of analgebraic closure of a p-adio field.
文摘We present a new method to calculate the focal value of ordinary differential equation by applying the theorem defined the relationship between the normal form and focal value,with the help of a symbolic computation language M ATHEMATICA,and extending the matrix representation method.This method can be used to calculate the focal value of any high order terms.This method has been verified by an example.The advantage of this method is simple and more readily applicable.the result is directly obtained by substitution.
文摘Questions can be classified from different perspectives： grammatical form, communicative value, content orientation and cognitive level. In language pedagogy, text-based questioning as both an attention drawing device and a form of learning tasks serves text instruction. Therefore, language teachers preparing text-based questioning should take into consideration all dimensions of questions, especially cognitive requirement and communicative character. In addition, interaction between learner, text and the world can be achieved by the adoption of both about-the-text and beyond-the-text questions in teachers＇ text-based question construction.
文摘We obtain effective lower bounds for certain linear combinations of the valuesat algebraic points of a class of p-adic G-functions defined over a completion of analgebraic closure of a p-adio field.
