.if t \{\
.	po 1n
.	pl 29c
.	ll 20c
.\}
.nf
.EQ
a fwd 100 b
.EN
.EQ
a back 20 b
.EN
.EQ
a sub 2 over b
.EN
.EQ I (13a)
C=Ax+By
.EN
Formel #y sub 1 = 75# im Text vor \f(CWdelim\fP.
.EQ
delim ##
.EN
Formel #y sub 2 = 85# im Text nach \fIdelim\fP.
.EQ
delim ?!
.EN
Formel ?y sub 2 = 85! im Text mit \fIdelim
.EQ
delim off
.EN
? und !\fP.
Formel #y sub 3 = 95# nach \fBdelim\fP \fHoff\fP.
.EQ
C~=~Ax~+~By
.EN
.EQ
C^=^Ax^+^By
.EN
.ta 0.5i +0.5i +0.5i
.EQ
x sub 1	+x sub 2	+s sub 1	=^10
.EN
.EQ
-2x sub 1		+s sub 1	=^42
.EN
.EQ
delim $$
.EN
$y sub 1 = x sup 2 + 1$
$a sub k sup 2$
$a sup 2 sub k$
.EQ
e sup {i sup {k + 1}}
.EN
$pi r sup 2$
$del y / del x$
$partial x / partial t$
$Expected~Value~=~sum from {i=1} to inf pi sub i X sub i$
.EQ
sqrt {b sup 2 - 4ac}
.EN
.EQ
"" sup 3 sqrt x
.EN
$P=R left [ 1^-^{1+1 sup n} over i right ]$
.EQ
matrix {
  lcol {1 above 0}
  rcol {half above -1}
}
.EN
.EQ
P~=~left [
   pile { nu sub 1 above nu sub 2 above cdot
   above cdot above cdot above nu sub N }
right ]
.EN
.EQ
f sub X (x)^=^left {
  rpile { 0 above 2x above 0 }
  ~~lpile { x < 0 above 0 <= x <= 1 above x > 1 }
.EN
$cr e hat pes$
$Citr o dotdot en$
$a vec + b vec$
$X bar sub st$
.EQ
define 2i '2 sup i'
define 1/2i '1 over 2i'
.EN
Test:
$1/2i, 2i$
$italic "cos(x)" + cos (x)$
.EQ
mu~mark =~lambda t
.EN
.EQ
lineup =~int from 0 to t lambda dz
.EN
$bold qP$
$roman alpha~beta$
$fat half$
$size +3 x =y$
$size 8 {A + B}$
.EQ
{partial sup 2 f} over {partial x sup 2} =
x sup 2 over a sup 2 + y sup 2 over b sup 2
.EN
.EQ
x = {-b +- sqrt{b sup 2 -4ac}} over 2a
.EN
.bp
.EQ
define emx "{e sup mx}"
define mab "{m sqrt ab}"
define sa "{sqrt a}"
define sb "{sqrt b}"
int dx over {a emx - be sup -mx} ~=~
left { lpile {
        1 over {2 mab} ~log~
            {sa emx - sb} over {sa emx + sb}
    above
        1 over mab ~ tanh sup -1 ( sa over sb emx )
    above
       -1 over mab ~ coth sup -1 ( sa over sb emx )
}
.EN
.EQ I (3.1a)
x = f(y/2)+y/2
.EN
.EQ
x  =  y
  + z
.EN
.EQ
x~=~y~+~z
.EN
.EQ
(a sup 2 /b sub 2 ) sup half
.EN
.EQ
size 14 bold x = y +
  size 14 {alpha + beta}
.EN
.EQ
"{ size alpha }"
roman "{ size alpha }"
.EN
.EQ I
G(z)~mark =~ e sup { ln ~ G(z) }
~=~ exp left (
sum from k>=1 {S sub k z sup k} over k right )
~=~ prod from k>=1 e sup {S sub k z sup k /k}
.EN
.EQ I
lineup = left ( 1 + S sub 1 z +
{ S sub 1 sup 2 z sup 2 } over 2! + ... right )
left ( 1+ { S sub 2 z sup 2 } over 2
+ { S sub 2 sup 2 z sup 4 } over { 2 sup 2 cdot 2! }
+ ... right ) ...
.EN
.EQ I
lineup = sum from m>=0 left (
sum from
pile { k sub 1 ,k sub 2 ,..., k sub m >=0
above
k sub 1 +2k sub 2 + ... +mk sub m =m}
{ S sub 1 sup {k sub 1} } over {1 sup k sub 1 k sub 1 ! } ~
{ S sub 2 sup {k sub 2} } over {2 sup k sub 2 k sub 2 ! } ~
...
{ S sub m sup {k sub m} } over {m sup k sub m k sub m ! }
right ) z sup m
.EN
.EQ
define dsum % sum from $1 to $2 $3 %
dsum("i=1", n, "")~~~dsum("j=1", n, "x sub ij")
.EN
.EQ
gsize 20
gfont CW
a=b+c
.EN
