Persistent custom functions supported: a certain file will be executed as script whenever Eigenmath's 'clear' command is issued, just put your custom functions and constants there. Pressing will insert sin( in the command line, pressing, will insert arccos(, pressing will insert log( (since Eigenmath's log is the natural logarithm), and so on Most keys from the keyboard mapped to Eigenmath commands. Paste commands from system clipboard and copy commands and results into the system clipboard* Session persistence (optional): exit Eigenmath, then open it again, and everything will be there as before leaving, including console scrollback, command history and user symbols (custom variables and functions) ĮActivity strip support a script can be included in the strip, to be run when it is opened Output pretty-printing: while not as nice as the one done by the OS on built-in math screens, this still is much better than what you get with most Eigenmath ports:īracket color-matching on command input (like the OS does) Ģ00 lines of console scrollback and 40 command history entries In addition to this, there are also some features exclusive to this port, some of which only make sense to include with the Prizm platform: Script execution and creation ('recording') įunction catalog (with help for each function). Graph plotting (zoom in and out, move left/right/up/down as with the OS) Some features from the graphical versions and ports of Eigenmath are also available, with different UI (adequate to the platform), including: This means certain commands are going to take longer to execute, and certain ones won't complete due to lack of memory (640K ought to be enough for anybody, as if it's 1981 again). FeaturesĪll of the functionality of the command-line version of Eigenmath is available on this port, with limitations consistent with the technical limits of the Casio Prizm platform. This is a port of the Eigenmath math engine to the Casio Prizm in the form of an add-in, providing numerous math functions not available in the OS, including symbolic computation. And, because it uses std::vector, you'll need to compile with -std=c++11 or better.Eigenmath port for the Casio Prizm (fx-CG 10 and 20) I'm almost positive there's a more elegant way to do this, but I can't think of it right now. Thankfully, due to template argument deduction, you can simply call this mess like this: Eigen::Matrix3f myMatrix Įigen::Matrix3f sorted = sortMatrix(myMatrix) Manually construct a vector of correctly-typed matrix rowsįor (unsigned int i = 0 i < matrixRows.size() i++) Simple little templated comparison functor This isn't pretty, and relies on picking apart the matrix using its template parameters - but it works. Allow to pass (optional) a function / PRNG to break ties, if any remain.įurthermore, could we not use auto for automatic template deduction despite the warnings in Eigen?.Remaining columns are used in lexicographic order to break ties. Allow to specify a variable number of columns ( 0 to n ) that shall be used in the comparison in given order.How ever, I guess it can be improved and I hope for help: This option also takes the target matrix by reference. Std::sort(vec.begin(), vec.end(), (Eigen::VectorXd const& t1, Eigen::VectorXd const& t2) ) Void eigen_sort_rows_by_head(Eigen::MatrixXd& A_nx3)įor (int64_t i = 0 i < A_nx3.rows() ++i) Based on the second Option by xjcl, I created a lambda based option that can easily be included in a header file: #include

Eigenmath reference