TeXdraw examples using plain TeX.

y  x

∑ ρ_{n}

                          t:F      t:V        t:T      t:H t:W

     Horizontal Text h:C v:C h:L v:C                           h:R v:C h:C v:T h:C v:B h:L v:B h:L v:T                           h:R v:T h:R v:B  Rotated Text h:C v:C h:L v:C                   h:R v:C h:C v:Th:C v:B h:L v:B h:L v:T                   h:R v:T h:R v:B

H-text H-text  V-text  H-text H-text

0 1  2 3  0  1  2 3  0 1  2 3

H(z)

tip at (1 1) tip at (2 1) tip at (2 0)

x(n)  ^{+} ^{−} z^{−1}  _{+} _{−} f_{0}(n)  f_{1}(n) b_{0}(n)  b_{1}(n) K_{1} K_{1}  · · · · · ·  ^{+} ^{−}  e(n) z^{−1}  _{+} _{−} f_{P −1}(n)  f_{P} (n) b_{P −1}(n)  b_{P} (n) K_{P} K_{P}

0  \frac{π}{2N} ω_{s}  \frac{π}{N}  ω

X O  β_{2} |β_{1}+β_{3}| |β_{1}−β_{3}|