Inverse Problem

Inverse Problem Theory, I have been reading this book since Tuesday, this is the first task of my thesis, but i found it difficult to understand the content of the book, some of the definitions are really abstract. Inverse problem is like trying to get to know or think of the things in the opposite way, like the measurements of gravity field around the earth, we could predict the values of gravity field by maeasuring the distribution of mass inside the planet, and there are different distributions of mass that give exactly the same gravity field in the space outside earth, as to inverse problem is to infer the mass distribution from observations of the gravity field. At beginning i thought this book was about the math, mechanics and computations, but it's not sheer calculations, i think i will have to spend more time to read it so as to understand it.
Today Glenn and Dees visited us, two new missionaries, we think they are as awesome as the others, i received a letter from Tom, he told us he was doing well in Homstad and made a lot of new friends, Nathan now is studying in Utah, we all miss them so much~

Hi there

It's been a long time since the last post cuz sometimes i seem to have no inspiration for good quality writing. I am now writing my thesis with professor Lars-Erik who came from Luleå institute of technology. We met at central station yesterday morning, he flew down here from Luleå and introduced the general idea of the work to me and recommended some papers and gave me a book to read. It's a very interesting topic which concentrates on the study of inverse problem.
Last Sunday was Spring Festival (Chinese New Year), we made the dumplings at home. Making dumplings is a heavy work for us, but it was fun for two people making them together. After lunch, we chated with our families in Beijing and watched the Spring Festival Show on CCTV, it was brilliant.
Now i also have to finish two extra courses to get enough credits for my master guaduation, i suppose i would get my master degree by the end of June.