Multi-precision progress reportis

[CdeMills]

Hello,

the rewrite of multi-precision variables by direct use of mpfr is useable. A
'make' in multi-precision/src generates mpv.oct implements a three-args mpv
function. Example of calls:
x = mpv(2, 1024)
x = mpv('log2', 2048, "MPFR_RNDU")
 %# accepted constants: log2, pi, euler, catalan

When a mpv number is created, basic ops (+,-,*,/) works by upclassing the
argument with the lowest precision to the precision of the other. Mapping
functions (sin, cos, ...) are implemented too. Only real scalar values are
supported for now

To go further:
1) how to overload function like tan2 ?
2) how to implement complex values ?
3)  how to go from scalar to matrices ?

Regards

Pascal



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