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.PS
# `Wheat.m4'
gen_init
boxwid = boxht
for j = 0 to 7 do {
for i = 0 to 7 do {
box fill_((i+j)%2) at (j*boxwid,-i*boxwid)
x = 2^(j+8*i)
if (i+j)%2==0 then { command "{\white" } else { command "{\black" }
if x < 10000 then { sprintf("\Large$%g$",x) at last box } \
else { y = int(log(x))
sprintf("{\Large$%g$}$\cdot 10^{%g}$",round_(x/(10^y)),y) \
at last box }
command "}"
}
}
.PE
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