The incidence of electrocardiographic features "typical" for the Duchenne progressive muscular dystrophy (PMD) was investigated in 191 carriers: 136 mothers and 55 daughers. The typical PMD pattern was seen in 6.6% of the mothers, and a pattern similar to that observed in PMD in 2.9%. Among daughters of carriers the percentages were 16.4 and 1.8… (More)
In the paper locally superquadraticly convergent methods for minimization functions are considered. Threefold symmetric approximations to partial derivatives of the third order are constructed.
In this article the problem of solving a system of singular nonlinear equations will be discussed. New the iterative 2-order method for this problem is presented. The article includes the numerical results for the method.
In this article the problem of solving a system of singular nonlinear equations will be discussed. The theory of local and Q-superlinear converegence for the nonlinear operators is developed .