# Complex#scalar? returns false

**URL:** <https://www.ruby-forum.com/t/complex-scalar-returns-false/134373>\
**Category:** Development\
**Created:** [April 10, 2008, 9:42am UTC](https://www.ruby-forum.com/t/complex-scalar-returns-false/134373 "2008-04-10T09:42:33Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![Kenta\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/b5a626/32.png) [@Kenta\_M](https://www.ruby-forum.com/u/Kenta_M)\
**Post date:** [April 10, 2008, 9:42am UTC](https://www.ruby-forum.com/t/complex-scalar-returns-false/134373/1 "2008-04-10T09:42:33Z")

</div>

e$B$`$i$?$G$9!%e(B

Complex#scalar? e$B$,e(B false  
e$B$rJV$9$h$&$G$9!%%I%-%e%a%s%H$r8+$k$He(B

[http://doc.loveruby.net/refm/api/view/method/Numeric/i/scalar=3f](http://doc.loveruby.net/refm/api/view/method/Numeric/i/scalar=3f)

> e$B\<+?H$,e(B Complex e$B$+$=$N%5%V%/%i%9$N%$%s%9%?%s%9$G$J$$\>l9g$Ke(B true e$B$rJV$7$^$9!#e(B  
> e$B$=$&$G$J$$\>l9g$Ke(B false e$B$rJV$7$^$9!#e(B

e$B$H=q$+$l$F$$$F!$%a%=%C%IL\>$H;EMM$,9g$C$F$J$$$h$&$K;W$($^$9!%e(B

e$B;EMM$r$=$N$^$^%a%=%C%IL\>$K$9$k$He(B Numeric#complex?  
e$B$K$J$j$^$;$s$+!)e(B  
Numeric#scalar?  
e$B$H$$$&L\>A0$+$i$O!$%\*%V%8%'%/%H$,%Y%/%H%k$G$J$$\>l9g$Ke(B  
true e$B$rJV$9$3$H$,4|BT$5$l$k$H;W$$$^$9!%e(B  
e$B$G$9$+$i!$L\>A0$rJQ99$9$k$+!$;EMM$rJQ99$9$k$+!$$I$A$i$+$,I,MW$G$O$J$$$G$7$g$&$+!%e(B

e$B$b$&2?G/$bA0$KDI2C$5$l$?%a%=%C%I$N;EMM$r:#:“\>x$7JV$7$F?=$7$o$1$”$j$^$;$s!%e(B  
e$B$h$m$7$/$\*4j$$$7$^$9!%e(B

---

<div class="post-metadata">

**Author:** ![Kenta\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/b5a626/32.png) [@Kenta\_M](https://www.ruby-forum.com/u/Kenta_M)\
**Post date:** [April 10, 2008, 9:58am UTC](https://www.ruby-forum.com/t/complex-scalar-returns-false/134373/2 "2008-04-10T09:58:42Z")

</div>

e$B$J$+$@$G$9!#e(B

At Thu, 10 Apr 2008 16:42:10 +0900,  
Kenta M. wrote in [ruby-dev:34285]:

> Complex#scalar? e$B$,e(B false e$B$rJV$9$h$&$G$9!%%I%-%e%a%s%H$r8+$k$He(B
> 
> [http://doc.loveruby.net/refm/api/view/method/Numeric/i/scalar=3f](http://doc.loveruby.net/refm/api/view/method/Numeric/i/scalar=3f)
> 
> > e$B\<+?H$,e(B Complex e$B$+$=$N%5%V%/%i%9$N%$%s%9%?%s%9$G$J$$\>l9g$Ke(B true e$B$rJV$7$^$9!#e(B  
> > e$B$=$&$G$J$$\>l9g$Ke(B false e$B$rJV$7$^$9!#e(B
> 
> e$B$H=q$+$l$F$$$F!$%a%=%C%IL\>$H;EMM$,9g$C$F$J$$$h$&$K;W$($^$9!%e(B

e$B!Ve(BComplexe$B$+$=$N%5%V%/%i%9$N%$%s%9%?%s%9$N\>l9g$K$Oe(Bfalsee$B$rJV$7$^$9!We(B  
e$B$H$$$&$3$H$G$9$+$i!"9g$C$F$$$k$N$G$O!#e(B

> e$B;EMM$r$=$N$^$^%a%=%C%IL\>$K$9$k$He(B Numeric#complex? e$B$K$J$j$^$;$s$+!)e(B  
> Numeric#scalar? e$B$H$$$&L\>A0$+$i$O!$%\*%V%8%'%/%H$,%Y%/%H%k$G$J$$\>l9g$Ke(B  
> true e$B$rJV$9$3$H$,4|BT$5$l$k$H;W$$$^$9!%e(B

e$BJ#AG?t$r%Y%/%H%k$H$7$F07$&$3$H$OB?$$$s$8$c$J$$$G$7$g$&$+!#e(B

---

<div class="post-metadata">

**Author:** ![Kenta\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/b5a626/32.png) [@Kenta\_M](https://www.ruby-forum.com/u/Kenta_M)\
**Post date:** [April 10, 2008, 10:21am UTC](https://www.ruby-forum.com/t/complex-scalar-returns-false/134373/3 "2008-04-10T10:21:43Z")

</div>

e$B$`$i$?$G$9!%e(B

2008/4/10 Nobuyoshi N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> > Complex#scalar? e$B$,e(B false e$B$rJV$9$h$&$G$9!%%I%-%e%a%s%H$r8+$k$He(B
> > 
> > [http://doc.loveruby.net/refm/api/view/method/Numeric/i/scalar=3f](http://doc.loveruby.net/refm/api/view/method/Numeric/i/scalar=3f)
> > 
> > > e$B\<+?H$,e(B Complex e$B$+$=$N%5%V%/%i%9$N%$%s%9%?%s%9$G$J$$\>l9g$Ke(B true e$B$rJV$7$^$9!#e(B  
> > > e$B$=$&$G$J$$\>l9g$Ke(B false e$B$rJV$7$^$9!#e(B
> > 
> > e$B$H=q$+$l$F$$$F!$%a%=%C%IL\>$H;EMM$,9g$C$F$J$$$h$&$K;W$($^$9!%e(B
> 
> e$B!Ve(BComplexe$B$+$=$N%5%V%/%i%9$N%$%s%9%?%s%9$N\>l9g$K$Oe(Bfalsee$B$rJV$7$^$9!We(B  
> e$B$H$$$&$3$H$G$9$+$i!"9g$C$F$$$k$N$G$O!#e(B

e$BJ#AG?t$O%9%+%i$G$9$h$M!%$=$7$F!$e(Bscalar? e$B$H$$$&L\>A0$+$i$O!$e(B  
e$B!V%Y%/%H%k$+%9%+%i$+!W$rEz$($k=R8l$G$"$k$h$&$K;W$($^$9!%e(B

> e$BJ#AG?t$r%Y%/%H%k$H$7$F07$&$3$H$OB?$$$s$8$c$J$$$G$7$g$&$+!#e(B

e$B$=$l$O!$%Y%/%H%k!V$H$7$F!W07$C$F$$$k$o$1$G$O$J$/$F!$e(B  
e$BJ#AGJ?LL\>e$G%Y%/%H%k!V$N$h$&$K8+$($k!W$+$i!$@bL@$rJ,$+$j$d$9$/e(B  
e$B$9$k$?$a$K%Y%/%H%k$rMQ$$$F@bL@$7$F$$$k$@$1$@$H;W$C$F$$$?$N$G$9$,!%e(B

e$BJ#AG?te(B a + bi e$B$O$=$N1i;;5,B’$+$i%Y%/%H%k$h$j$O$`$7$me(B

[a -b]  
[b a]

e$B$H$$$&7A$Ne(B2e$B\<!85@5J}9TNs$HF1$8$b$N$K$J$j$^$9$h$M!%e(B

---

<div class="post-metadata">

**Author:** ![Kenta\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/b5a626/32.png) [@Kenta\_M](https://www.ruby-forum.com/u/Kenta_M)\
**Post date:** [April 10, 2008, 10:31am UTC](https://www.ruby-forum.com/t/complex-scalar-returns-false/134373/4 "2008-04-10T10:31:44Z")

</div>

e$B$`$i$?$G$9!%e(B

e$B4V0c$($^$7$?e(B \>\_\<

2008/4/10 Kenta M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> e$B$=$l$O!$%Y%/%H%k!V$H$7$F!W07$C$F$$$k$o$1$G$O$J$/$F!$e(B  
> e$BJ#AGJ?LL\>e$G%Y%/%H%k!V$N$h$&$K8+$($k!W$+$i!$@bL@$rJ,$+$j$d$9$/e(B  
> e$B$9$k$?$a$K%Y%/%H%k$rMQ$$$F@bL@$7$F$$$k$@$1$@$H;W$C$F$$$?$N$G$9$,!%e(B

e$B$3$l$O13$G$9!%J#AG?t$N=89g$b%Y%/%H%k6u4V$N8xM}$rK~$?$7$F$k$N$G!$e(B  
e$BJ#AG?t$r%Y%/%H%k$H$7$F07$&$3$H$,$G$-$^$9!%?=$7J,$1$"$j$^$;$s!%e(B

---

<div class="post-metadata">

**Author:** ![Kenta\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/b5a626/32.png) [@Kenta\_M](https://www.ruby-forum.com/u/Kenta_M)\
**Post date:** [April 11, 2008, 10:23am UTC](https://www.ruby-forum.com/t/complex-scalar-returns-false/134373/5 "2008-04-11T10:23:57Z")

</div>

e$B$J$+$@$G$9!#e(B

At Thu, 10 Apr 2008 17:21:05 +0900,  
Kenta M. wrote in [ruby-dev:34289]:

> e$BJ#AG?t$O%9%+%i$G$9$h$M!%$=$7$F!$e(Bscalar? e$B$H$$$&L\>A0$+$i$O!$e(B  
> e$B!V%Y%/%H%k$+%9%+%i$+!W$rEz$($k=R8l$G$"$k$h$&$K;W$($^$9!%e(B

e$B%Y%/%H%k$@$H;W$C$F$^$7$?!#%9%+%i$@$H;W$C$?$3$H$O$"$j$^$;$s!#e(B

---

<div class="post-metadata">

**Author:** ![Kenta\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/b5a626/32.png) [@Kenta\_M](https://www.ruby-forum.com/u/Kenta_M)\
**Post date:** [April 11, 2008, 11:23am UTC](https://www.ruby-forum.com/t/complex-scalar-returns-false/134373/6 "2008-04-11T11:23:59Z")

</div>

e$B$`$i$?$G$9!%e(B

2008/4/11 Nobuyoshi N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> e$B$J$+$@$G$9!#e(B
> 
> At Thu, 10 Apr 2008 17:21:05 +0900,  
> Kenta M. wrote in [ruby-dev:34289]:
> 
> > e$BJ#AG?t$O%9%+%i$G$9$h$M!%$=$7$F!$e(Bscalar? e$B$H$$$&L\>A0$+$i$O!$e(B  
> > e$B!V%Y%/%H%k$+%9%+%i$+!W$rEz$($k=R8l$G$"$k$h$&$K;W$($^$9!%e(B
> 
> e$B%Y%/%H%k$@$H;W$C$F$^$7$?!#%9%+%i$@$H;W$C$?$3$H$O$"$j$^$;$s!#e(B

e$B@h$N%a!\<%k$K$b=q$$$?$h$&$K!$%Y%/%H%k$N8xM}$rK~$?$7$F$$$^$9$+$ie(B  
e$B%Y%/%H%k$H$7$F07$C$F$b9=$o$J$$$H;W$$$^$9!%e(B

e$B$7$+$7!$;d$O%Y%/%H%k$H$7$F$G$O$J$/!$%9%+%i$H$7$F07$o$l$F$$$kNc$7$+e(B  
e$B8+$?$3$H$,$“$j$^$;$s!%J#AG%Y%/%H%k\>l!$J#AG%9%+%i\>l$H$$$&8@MU$,$”$j!$e(B  
e$BA0\<T$G$b8e\<T$G$bJ#AG?t$O%9%+%i$G$9!%J#AG?t$,%Y%/%H%k$H$7$F07$o$l$ke(B  
e$BNc$O8f:B$$$^$9$+!)e(B

---

<div class="post-metadata">

**Author:** ![Kenta\_M](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/b5a626/32.png) [@Kenta\_M](https://www.ruby-forum.com/u/Kenta_M)\
**Post date:** [April 14, 2008, 11:37am UTC](https://www.ruby-forum.com/t/complex-scalar-returns-false/134373/7 "2008-04-14T11:37:29Z")

</div>

e$B86$G$9!#e(B

> > e$B%Y%/%H%k$@$H;W$C$F$^$7$?!#%9%+%i$@$H;W$C$?$3$H$O$"$j$^$;$s!#e(B
> 
> e$B@h$N%a!\<%k$K$b=q$$$?$h$&$K!$%Y%/%H%k$N8xM}$rK~$?$7$F$$$^$9$+$ie(B  
> e$B%Y%/%H%k$H$7$F07$C$F$b9=$o$J$$$H;W$$$^$9!%e(B
> 
> e$B$7$+$7!$;d$O%Y%/%H%k$H$7$F$G$O$J$/!$%9%+%i$H$7$F07$o$l$F$$$kNc$7$+e(B  
> e$B8+$?$3$H$,$"$j$^$;$s!%J#AG%Y%/%H%k\>l!$J#AG%9%+%i\>l$H$$$&8@MU$,$"$j!$e(B  
> e$BA0\<T$G$b8e\<T$G$bJ#AG?t$O%9%+%i$G$9!%J#AG?t$,%Y%/%H%k$H$7$F07$o$l$ke(B  
> e$BNc$O8f:B$$$^$9$+!)e(B

e$B$`$i$?$5$s$N$\*$C$7$c$kDL$j!"!VJ#AG?t!W$O%9%+%i!\<$H$7$F07$&%1!\<%9$OB?$$e(B  
e$B$G$9!#!V%Y%/%H%k\>l!W$H$+8@$&$H!"$^$?$A$g$C$H!V%Y%/%H%k!W$N0UL#$,0c$&$+e(B  
e$B$H;W$$$^$9$,!#e(B

e$B$^$?!“87L)$K$O!“2?$,%9%+%i!\<$+$O!VDj5A$K$h$k!W$N$G!”$”$k$b$N$rC1FH$G\<he(B  
e$B$j=P$7$F%9%+%i!\<$G$"$k$+H]$+$OLd$($^$;$s!#e(B

e$BJQ$JNc$r;}$A=P$9$H!"\<B?t$rM-M}?t\>e$N%Y%/%H%k6u4V$H;W$&$H!"!VM-M}?t$,%9e(B  
e$B%+%i!\<$G!"\<B?t$,%Y%/%H%k!W$K$J$k!"$H$+!#e(B

e$B0J\>e$O?t3X$NOC$G!"e(BRuby e$B$NOC$KLa$9$H!"e(B1.9 e$B$Ne(B complex.rb  
e$B$Ke(B scalar? e$B$,Dje(B  
e$B5A$5$l$F$$$k$N$G$9$M!#e(Bscalar? e$B$O!“e(Breal?  
e$B$”$k$$$O!"e(Breal\_number? e$B$H$$$&L\>e(B  
e$BA0$K$7$?$I$&$G$7$g$&$+$M!#e(B