document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1046535>Question 1046535</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how to find the latus rectum in parabola<BR>\n" );
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document.write( "The latus rectum  runs parallel to the directrix and passes through the focus. Its length:\r<BR>\n" );
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document.write( "    In a <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=parabola ALIGN=MIDDLE  ALT=\"parabola\"   DISABLED_style= \"max-width:90%; height:auto;\" >, is four times the focal length or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4p ALIGN=MIDDLE  ALT=\"4p\"   DISABLED_style= \"max-width:90%; height:auto;\" >. \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p+ ALIGN=MIDDLE  ALT=\"p+\"   DISABLED_style= \"max-width:90%; height:auto;\" >= distance between the vertex and focus\r<BR>\n" );
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document.write( "Then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2p ALIGN=MIDDLE  ALT=\"2p\"   DISABLED_style= \"max-width:90%; height:auto;\" > = distance between directrix and focus\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2L ALIGN=MIDDLE  ALT=\"2L\"   DISABLED_style= \"max-width:90%; height:auto;\" > = latus rectum\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2L+=+4p ALIGN=MIDDLE  ALT=\"2L+=+4p\"   DISABLED_style= \"max-width:90%; height:auto;\" >  </SPAN>\n" );
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