User Portlet
Discussions |
---|
Please, Help me to plot a graph of the solution of Equation of Laplace over the rectangle [{0.0;0.0},{0.1; 0.05}]. The following code does not work. H = DSolve[{u''[x, y] + u[x, y] == 0, u[0, y] == 0, u[x, 0] == 0, u[x, 0.05] == 0,... |
Dears, I try to implement a program for evaluating the behavior of the stator and rotor currents of a three-phase induction motor , through the Eule´rs method.The rotor is locked and thus s=1. Nonetheless, I have not succeeded in plotting them,... |
Please, friends, I ask your help. Based on my old minded and averaged skilled Fortran programmer, I would know how to build a matrix based on the Loop structure, as presented in the attached file. There is no need to having the same structure or... |
Hallo, Would someone help me wiht the solution of this inverse, please ? Scabral |
Hallo. I am dealing with a very simple problem of non-linear magnetic circuit. Thus, by solving the equation that gives me point of operatio, that is the real root, I cannot have it to manipulate for the sequence calculus. Would someone help me,... |
Dear friends, I´m in trouble with a problem that seems to be simple to solve. But I have wasted too much time, without success. I evaluate two series with 1000 terms, for the sinus and cossinus components of the modulus as function of y that... |
Hello, all ! I ask you please to help me. Some graphics present an insistent horizontal line that makes me nervous and I cannot eliminate it. It seems to be a bug. Or I am not able in using the command show correctly
Files are attached. ... |