document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=40621>Question 40621</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the projection of vector a on to vector b when the angle between them is equal to 0? <BR>\n" );
document.write( "i know the formula and stuff but i am not sure wherther the answer is -a or a as to get a projected onto b one of them needs to change direction...  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #26018 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=26018\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If the angle is zero the projection is \"a\".<BR>\n" );
document.write( "Consider a verctor parallel to the x-axis.<BR>\n" );
document.write( "The vector has a beginning pt and an end pt.<BR>\n" );
document.write( "Draw perpendicular lines to the x-axis to <BR>\n" );
document.write( "get the projection.<BR>\n" );
document.write( "The original vector and the projection vector<BR>\n" );
document.write( "have the same length and same direction.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );