diff options
Diffstat (limited to 'lib/mathn.rb')
| -rw-r--r-- | lib/mathn.rb | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/lib/mathn.rb b/lib/mathn.rb index 0241f578e9..57eac113c7 100644 --- a/lib/mathn.rb +++ b/lib/mathn.rb @@ -1,12 +1,12 @@ # -# mathn.rb - +# mathn.rb - # $Release Version: 0.5 $ # $Revision: 1.1.1.1.4.1 $ # by Keiju ISHITSUKA(SHL Japan Inc.) # # -- # -# +# # require "cmath.rb" @@ -66,14 +66,14 @@ class Rational elsif self == 1 return Rational(1,1) end - + npd = numerator.prime_division dpd = denominator.prime_division if other < 0 other = -other npd, dpd = dpd, npd end - + for elm in npd elm[1] = elm[1] * other if !elm[1].kind_of?(Integer) and elm[1].denominator != 1 @@ -81,7 +81,7 @@ class Rational end elm[1] = elm[1].to_i end - + for elm in dpd elm[1] = elm[1] * other if !elm[1].kind_of?(Integer) and elm[1].denominator != 1 @@ -89,12 +89,12 @@ class Rational end elm[1] = elm[1].to_i end - + num = Integer.from_prime_division(npd) den = Integer.from_prime_division(dpd) - + Rational(num,den) - + elsif other.kind_of?(Integer) if other > 0 num = numerator ** other @@ -129,7 +129,7 @@ module Math # if !(x.kind_of?(Rational) and y.kind_of?(Rational)) # return a**Rational(1,2) # end - if a.imag >= 0 + if a.imag >= 0 Complex(x, y) else Complex(x, -y) @@ -142,7 +142,7 @@ module Math Complex(0,rsqrt(-a)) end end - + def rsqrt(a) if a.kind_of?(Float) sqrt!(a) @@ -156,7 +156,7 @@ module Math while (src >= max) and (src >>= 32) byte_a.unshift src & 0xffffffff end - + answer = 0 main = 0 side = 0 @@ -166,13 +166,13 @@ module Math if answer != 0 if main * 4 < side * side applo = main.div(side) - else + else applo = ((sqrt!(side * side + 4 * main) - side)/2.0).to_i + 1 end else applo = sqrt!(main).to_i + 1 end - + while (x = (side + applo) * applo) > main applo -= 1 end |