I have no intention to advertise for HP, of course, don't hide me, I like HP49G this calculator, anyway, the following text is just record my own true idea. In order to deal with the number of computational quantities in the graduate stage, it has exceeded a mathematics class that can handle the range of normal people, and it is also a reward, my dad bought this calculator from the United States, USD147. I admit that this price is very high for a calculator, but look at the features provided below, I personally think it is worthwhile.
HP49G function introduction
Complex Operation Limit Division and Integral Generalized Integral Quotal Requirements and Vector Algebra Symbol Polynomial Calculation Triangulation and Index Calculation Multi - Function Substantially Differential Equations Ask Deli Level Dialect Fourier and Laplas Transform Matrix Calculation, Support Symbol Matrix Matrix Jordan , LU, etc. Decompose secondary transformation nonlinear equation set value for solving probability distribution calculation statistics, hypothesis inspection, confidence inter-confidence
Of course, the calculator is also provided with a function graphics function, online upgrade, programming (User RPL, SYSTEM RPL, ARM), RPN (a mathematical formula input method that can greatly reduce the number of keystrisms), but I think it is no longer possible The main function is.
Sense of use
I am familiar with this tool, basically spent 1 month, when I fully master the HP49G usage method, I found the mathematics I have learned before, and a large part can be replaced by the calculator. In fact, I believe that mathematics education in our country may need some change. I also clearly remember when I was young, how to report the abacus on the newspaper, how to challenge the calculation of those calculations in the 10-digit add-to-chief, however, I think, if it is just simple let that The matrix calculation of 3 * 3 is inversely, he can't compare with HP49G . Don't mention the 3-order polynomial decomposition. The tool is always progressing. Some of us can temporarily transcend tools for their individuals, but they can never go beyond simultaneous manufacturing tools, and the tools will evolve together. I think I must now adjust yourself, learn how to use tools such as HP49G , Mathematica, Matlab, Google, etc., based on their theory, just like learning a great scientist, standing on the shoulders of the giant, advance .
Related Website
http://www.hp.com/calculators/graphing/49gplus/http://hpcalc.kn.vutbr.cz/ You can download it here to debug4x, this development environment includes an HP49G calculator simulator, you can Run http://page.mi.fu-berlin.de/~raut/wr49/index.htm
