document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=531733>Question 531733</A>: <I><SPAN STYLE=\"word-break: break-all;\"> explain domain and range of a function,in what circumstanes would the domain be something other than a real number? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #350593 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=350593\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Domain = the set of inputs for a function<BR>\n" );
document.write( "Range = the set of outputs for a function\r<BR>\n" );
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document.write( "The domain does not necessarily have to be a real number. For example, most functions can be defined on complex numbers; i.e. if f(x) = 5x + 2, then f(1+i) = 5(1+i) + 2 = 7 + 5i. Or, the domain of a function could be a vector quantity instead of a scalar. </SPAN>\n" );
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