Fibonacci matrix-exponentiation: Difference between revisions

{{libheader|Phix/mpfr}} {{trans|Sidef}} Since I don't have a builtin fibmod, I had to roll my own, and used {n,m} instead of(/to mean) 2^n+m, thus avoiding some 2^53 native atom limits on 32-bit.<br>

(mpz and mpfr variables are effectively pointers, and therefore simply won't work as expected/needed should you try and use them as keys to a cache.)

<span style="color: #008080;">without</span> <span style="color: #008080;">javascript_semantics</span> <span style="color: #000080;font-style:italic;">-- (no mpfr_log(), mpfr_exp() under pwa/p2js)</span>

<span style="color: #7060A8;">requires</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"1.0.0"</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- (mpfr_set_default_prec[ision] has been renamed)</span>