Matlab high precision calculation in c++ via mex files -


i want learn how high precision calculations of (matlab) function in c++ via mex files – how define new types if required, , requirements / installations / makes need. pretty new (again) c++ , have windows 7 , g++ / microsoft sdk 7.1 c++ compiler, , visual studio 2013.

in detail: in matlab code, want run function f, takes several parameters , arrays arguments , returns scalar, speed in c++ via mex files, , accuracy high precision, is, more “double”, 50 (enough now, later maybe 80) significant decimal digits. function f finds root of function g, g finds roots of fourth-order polynomial (which known real), basic computations (exp, power, mult., div.) them, , known numerically unstable if not being used high precision.

i managed run through mex files in c++ “standard” precision. now, library or tool use run in c++ - or possible without further tool – , how define new type , how in mex…

i tried gmp not see how install on windows (from manual). can show me (best instructions) how to?


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