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2d
revised Fit large tikz image on page without white space
Made example more garish.
2d
revised Fit large tikz image on page without white space
added different version using \useasboundingbox
2d
answered Fit large tikz image on page without white space
Jul
30
answered Tikz spy - empty zoom with pdflatex
Jul
30
answered How to draw this image using tikz?
Jul
29
comment Draw a circular node with a sine cirve in it to resemble the symbol a short sine wave
@LuZhang probably you need to add inner sep=0pt to the node options. This is by default set to .333ex (or maybe it's .333em) which - depending on the font - will make the node bigger than 0.05cm, even when it is empty.
Jul
29
answered Draw a circular node with a sine cirve in it to resemble the symbol a short sine wave
Jul
28
answered Normal distribution with discrete histogram inscribed
Jul
27
answered Drawing and Labeling a Triangle for a Demonstration of the Double-Angle Formula of Cosines
Jul
25
revised Telling to TikZ continue the previously-drawn path with a line-to operation?
Removed need for \makeatletter
Jul
25
comment Drawing the three altitudes of a triangle with TikZ; incorrect orthocenter
@Rokas \pgfpointnormalised simply converts a 2D-coordinate to a unit-vector (i.e. same angle but with length 1pt). It is used in the calculation of orthogonal projections (and in a bunch of other places). The original version was very fast, but a bit inaccurate (maybe only to around 1 degree) and the inaccuracies were magnified with subsequent calculations, the version I put in above is orders of magnitude slower but comparatively more accurate. You could put in a feature request or a bug report here so it doesn't get forgotten.
Jul
25
answered Telling to TikZ continue the previously-drawn path with a line-to operation?
Jul
24
awarded  Nice Answer
Jul
21
answered Drawing the three altitudes of a triangle with TikZ; incorrect orthocenter
Jul
20
answered Storing and re-using tikz coordinates for position and tangent vectors
Jul
18
answered How to draw four squares arranged as in the following figure
Jul
18
awarded  Great Answer
Jul
18
answered how to shade portion of a circle using Tikz?
Jul
18
answered foreach loop for adding arcs using commands path and edge
Jul
15
answered storing a pgfpoint for repeated use