Keywords: Intercept theorem vectors.svg en Displays a vector parallelogram and its relation to the intercept theorem Own Qef 2009-06-21 Original bitmap version en File Intercept theorem vectors png Other fields M + metapost-source prologues 3; input boxes beginfig 1 ; pickup pencircle scaled 1pt; pair va vb; va 100mm 0 ; vb 10mm 30mm ; numeric p; p 2/5; z0 0 0 ; corners of main box z1 z0 + va; z2 z0 + vb; z3 z0 + va + vb; ahlength ahlength 1 3; drawarrow z0--pz0 z1; drawarrow pz0 z1--z1; drawarrow z0--pz0 z2; drawarrow pz0 z2--z2; drawarrow z0--pz0 z3; drawarrow pz0 z3--z3; linecap butt; draw z1--z3 dashed evenly scaled 2; draw z2--z3 dashed evenly scaled 2; draw pz0 z1--pz2 z3 dashed evenly scaled 2; draw pz0 z2--pz1 z3 dashed evenly scaled 2; dotlabel bot btex \vec a etex pz0 z1 ; dotlabel bot btex \lambda \cdot \vec a etex z1 ; dotlabel lft btex \vec b etex pz0 z2 ; dotlabel lft btex \lambda \cdot \vec b etex z2 ; label rt btex \ \vec b\ etex 5pz0 z1 pz0 z3 ; label top btex \ \vec a\ etex 5pz0 z2 pz0 z3 ; label ulft btex \vec a + \vec b etex pz0 z3 ; label top btex \lambda \cdot \ \vec a\ etex pz2 z3 ; label rt btex \lambda \cdot \ \vec b\ etex pz1 z3 ; label urt btex \lambda \cdot \vec a + \vec b etex z3 ; endfig; end mpost fig mp ps2pdf -dEPSCrop fig 1 fig pdf pstoedit -page 1 -dt -xscale 2 -yscale 2 -f sk fig pdf fig sk inkscape -z --vacuum-defs -f fig sk -l fig svg Qef Intercept theorem |