diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | complex.c | 22 | ||||
| -rw-r--r-- | rational.c | 63 |
3 files changed, 46 insertions, 45 deletions
@@ -1,3 +1,9 @@ +Sat Jun 20 05:08:59 2009 Tadayoshi Funaba <tadf@dotrb.org> + + * complex.c; edited rdoc. + + * rational.c; ditto. + Sat Jun 20 04:30:35 2009 Tadayoshi Funaba <tadf@dotrb.org> * rational.c (nurat_abs); removed. @@ -814,10 +814,6 @@ nucomp_equal_p(VALUE self, VALUE other) return f_equal_p(other, self); } -/* - * call-seq: - * cmp.coerce(numeric) => array - */ static VALUE nucomp_coerce(VALUE self, VALUE other) { @@ -1315,6 +1311,24 @@ make_patterns(void) #define id_gsub_bang rb_intern("gsub!") #define f_gsub_bang(x,y,z) rb_funcall(x, id_gsub_bang, 2, y, z) +/* + * call-seq: + * string.to_c => complex + * + * Returns a complex which denotes string form. + * + * For example: + * + * '9'.to_c #=> (9+0i) + * '-3/2'.to_c #=> ((-3/2)+0i) + * '-i'.to_c #=> (0-1i) + * '45i'.to_c #=> (0+45i) + * '3-4i'.to_c #=> (3-4i) + * '-4e2-4e-2i'.to_c #=> (-400.0-0.04i) + * '-0.0-0.0i'.to_c #=> (-0.0-0.0i) + * '1/2+3/4i'.to_c #=> ((1/2)+(3/4)*i) + * 'ruby'.to_c #=> (0+0i) + */ static VALUE string_to_c_internal(VALUE self) { diff --git a/rational.c b/rational.c index 2aed3f29a7..98d8be30e4 100644 --- a/rational.c +++ b/rational.c @@ -1070,26 +1070,6 @@ nurat_equal_p(VALUE self, VALUE other) } } -/* - * call-seq: - * rat.coerce(numeric) => array - * - * If _numeric_ is a +Rational+ object, returns an +Array+ containing _rat_ - * and _numeric_. Otherwise, returns an +Array+ with both _rat_ and _numeric_ - * represented in the most accurate common format. This coercion mechanism is - * used by Ruby to handle mixed-type numeric operations: it is intended to - * find a compatible common type between the two operands of the operator. - * - * For example: - * - * Rational(2).coerce(Rational(3)) #=> [(2), (3)] - * Rational(5).coerce(7) #=> [(7, 1), (5, 1)] - * Rational(9, 8).coerce(4) #=> [(4, 1), (9, 8)] - * Rational(7, 12).coerce(9.9876) #=> [9.9876, 0.5833333333333334] - * Rational(4).coerce(9/0.0) #=> [Infinity, 4.0] - * Rational(5, 3).coerce('string') #=> TypeError: String can't be - * # coerced into Rational - */ static VALUE nurat_coerce(VALUE self, VALUE other) { @@ -1360,17 +1340,18 @@ nurat_round_common(int argc, VALUE *argv, VALUE self, * * For example: * - * Rational(2, 3).floor #=> 0 - * Rational(3).floor #=> 3 - * Rational(300.6).floor #=> 300 - * Rational(98,71).floor #=> 1 - * Rational(-30,2).floor #=> -15 + * Rational(2, 3).floor #=> 0 + * Rational(3).floor #=> 3 + * Rational(300.6).floor #=> 300 + * Rational(98,71).floor #=> 1 + * Rational(-30,2).floor #=> -15 + * Rational(-30,-11).floor #=> 2 * - * Rational(-1.125).floor.to_f #=> -2.0 - * Rational(-1.125).floor(1).to_f #=> -1.2 * Rational(-1.125).floor(2).to_f #=> -1.13 - * Rational(-1.125).floor(-2).to_f #=> -100.0 + * Rational(-1.125).floor(1).to_f #=> -1.2 + * Rational(-1.125).floor.to_f #=> -2.0 * Rational(-1.125).floor(-1).to_f #=> -10.0 + * Rational(-1.125).floor(-2).to_f #=> -100.0 */ static VALUE nurat_floor_n(int argc, VALUE *argv, VALUE self) @@ -1394,15 +1375,17 @@ nurat_floor_n(int argc, VALUE *argv, VALUE self) * * For example: * - * Rational(2, 3).ceil #=> 1 - * Rational(3).ceil #=> 3 - * Rational(300.6).ceil #=> 301 - * Rational(98, 71).ceil #=> 2 - * Rational(-30, 2).ceil #=> -15 + * Rational(2, 3).ceil #=> 1 + * Rational(3).ceil #=> 3 + * Rational(300.6).ceil #=> 301 + * Rational(98, 71).ceil #=> 2 + * Rational(-30, 2).ceil #=> -15 + * Rational(-30,-11).ceil #=> 3 * - * Rational(-1.125).ceil.to_f #=> -1.0 - * Rational(-1.125).ceil(1).to_f #=> -1.1 * Rational(-1.125).ceil(2).to_f #=> -1.12 + * Rational(-1.125).ceil(1).to_f #=> -1.1 + * Rational(-1.125).ceil.to_f #=> -1.0 + * Rational(-1.125).ceil(-1).to_f #=> 0.0 * Rational(-1.125).ceil(-2).to_f #=> 0.0 */ static VALUE @@ -1778,8 +1761,9 @@ integer_denominator(VALUE self) * * For example: * - * 0.3.numerator #=> 5404319552844595 # machine dependent - * lambda{|x| x.numerator.fdiv(x.denominator)}.call(0.3) #=> 0.3 + * n = 0.3.numerator #=> 5404319552844595 # machine dependent + * d = 0.3.denominator #=> 18014398509481984 # machine dependent + * n.fdiv(d) #=> 0.3 */ static VALUE float_numerator(VALUE self) @@ -1796,10 +1780,7 @@ float_numerator(VALUE self) * * Returns the denominator of _flo_ as an +Integer+ object. * - * For example: - * - * 0.3.denominator #=> 18014398509481984 # machine dependent - * lambda{|x| x.numerator.fdiv(x.denominator)}.call(0.3) #=> 0.3 + * See Float#numerator. */ static VALUE float_denominator(VALUE self) |