# aFixnum \*\* aComplex

**URL:** <https://www.ruby-forum.com/t/afixnum-acomplex/129200>\
**Category:** Development\
**Created:** [February 15, 2008, 11:41am UTC](https://www.ruby-forum.com/t/afixnum-acomplex/129200 "2008-02-15T11:41:02Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tadayoshi\_F](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/2bfe46/32.png) [@Tadayoshi\_F](https://www.ruby-forum.com/u/Tadayoshi_F)\
**Post date:** [February 15, 2008, 11:41am UTC](https://www.ruby-forum.com/t/afixnum-acomplex/129200/1 "2008-02-15T11:41:02Z")

</div>

rational e$B$rFI$s$G$$$k\>l9g!"0J2\<$N$h$&$J%(%i!\<$K$J$j$^$9!#e(B

$ ruby19 -r rational -r complex -e ‘1 \*\* Complex(1)’  
/usr/local/ruby19/lib/ruby/1.9.0/rational.rb:520:in `rpower': undefined method`\>=’ for Complex(1, 0):Complex (NoMethodError)  
from -e:1:in `’

e$B%j%j!\<%9$5$l$?e(B 1.9.0 e$B$O\>/$70c$$$^$9$,!"4pK\E\*$KF1$8$G$9!#e(B

$ ruby190 -r rational -r complex -e ‘1 \*\* Complex(1)’  
/usr/local/ruby190/lib/ruby/1.9.0/rational.rb:489:in `>=': super: no superclass method`\<=\>’ for Complex(1, 0):Complex (NoMethodError)  
from /usr/local/ruby190/lib/ruby/1.9.0/rational.rb:489:in  
`rpower' from -e:1:in`’

r9634 e$B$G!“e(B\<=\> e$B$,$J$/$J$j!”$D$$$3$N4Ve(B \>=  
e$B$J$I$b$J$/$J$C$?$3$H$,M}M3$G$9!#e(B  
1.8 e$B$G$O!"$\*$=$i$/8\_49@-$X$NG[N8$+$ie(B \<=\>  
e$B$,J|CV$5$l$F$$$k$?$a$G$7$g$&!#e(B  
e$BLdBj$,$"$j$^$;$s!#e(B

e$B$H$j$"$($:!"e(Bcoerce e$B$9$k$h$&$K$7$F$\_$^$7$?!#e(B

# Index: lib/rational.rb

— lib/rational.rb (revision 15487)  
+++ lib/rational.rb (working copy)  
@@ -517,6 +517,10 @@

# Returns a Rational number if the result is in fact rational (i.e.

+other+ \< 0).  
def rpower (other)

- if defined?(Complex) && Complex === other
- 

```
 x, y = other.coerce(self)

```

- 

```
 return x ** y

```

- end  
if other \>= 0  
self.power!(other)  
else  
@@ -537,6 +541,10 @@

# Returns a Rational number if the result is in fact rational (i.e.

+other+ \< 0).  
def rpower (other)

- if defined?(Complex) && Complex === other
- 

```
 x, y = other.coerce(self)

```

- 

```
 return x ** y

```

- end  
if other \>= 0  
self.power!(other)  
else