Lines Matching defs:log2
30 #pragma weak __log2 = log2
34 * log2(x) = log(x)/log2
47 * (i) modify a1 <- a1 / log2
48 * (ii) 1/log2 = 1.4426950408889634...
50 * Let lv = 1.5 - 1/log2, then
53 * (iv) Thus, log2(x) = f*1.5 - (lv*f - PPoly)
58 * log2(x) = log2(Y[j]) + log2(1 + (x-Y[j])*(1/Y[j]))
59 * = log(Y[j])(1/log2) + log2(1 + s)
67 * By setting b1 <- b1/log2, we have
68 * log2(x) = 1.5 * T - (lv * T - POLY(s))
73 * log2(x) = n + log2(z).
76 * log2(x) is NaN with signal if x < 0 (including -INF) ;
77 * log2(+INF) is +INF; log2(0) is -INF with signal;
78 * log2(NaN) is that NaN with no signal.
152 log2(double x) {