#######################################################################
# This shows the square, value, square root, log, and inverse
# for the values 1 to 10 (generated by series), fomatted by colex.

series 1 10 | dm "x1*x1" x1 "sqrt(x1)" "log(x1)" 1/x1 | colex -F6.2n 1-5

  1.00    1.00    1.00    0.00    1.00  
  4.00    2.00    1.41    0.69    0.50  
  9.00    3.00    1.73    1.10    0.33  
 16.00    4.00    2.00    1.39    0.25  
 25.00    5.00    2.24    1.61    0.20  
 36.00    6.00    2.45    1.79    0.17  
 49.00    7.00    2.65    1.95    0.14  
 64.00    8.00    2.83    2.08    0.12  
 81.00    9.00    3.00    2.20    0.11  
100.00   10.00    3.16    2.30    0.10  


#######################################################################
# This computes the population per square mile (data from InfoPlease.com).
# The area is in the second column and the population is in the third.
# Imagine this data is in country.dat
# Andorra      181      68403 
# Brazil   3286470  176029560 
# Canada   3851788   31902268
# Denmark    16639    5368854 
# Egypt     386660   70712345 
# France    211208   59765983
# Germany   137846   83251851

dm INPUT x3/x2 "if y2 < 100 then 'roomy' else 'friendly'" < country.dat

Andorra      181      68403     377.917 friendly
Brazil   3286470  176029560     53.5619 roomy
Canada   3851788   31902268     8.28246 roomy
Denmark    16639    5368854     322.667 friendly
Egypt     386660   70712345     182.88  friendly
France    211208   59765983     282.972 friendly
Germany   137846   83251851     603.948 friendly

#######################################################################
# This computes final scores from three exam scores.
# Here is exam.dat (fictitious data)
# S-1    john   male   56     42     58
# S-2    john   male   96     90     91
# S-3    john   male   70     59     65
# S-4    john   male   82     75     78
# S-5    john   male   85     90     92
# S-6    john   male   69     60     65
# S-7    john   female 82     78     60
# S-8    john   female 84     81     82
# S-9    john   female 89     80     68
# S-10   john   female 90     93     91
# S-11   jane   male   42     46     65
# S-12   jane   male   28     15     34
# S-13   jane   male   49     68     75
# S-14   jane   male   36     30     48
# S-15   jane   male   58     58     62
# S-16   jane   male   72     70     84
# S-17   jane   female 65     61     70
# S-18   jane   female 68     75     71
# S-19   jane   female 62     50     55
# S-20   jane   female 71     72     87

dm INPUT ".2*x4 + .3*x5 + .5*x6" < exam.dat

S-1    john   male   56     42     58	52.8
S-2    john   male   96     90     91	91.7
S-3    john   male   70     59     65	64.2
S-4    john   male   82     75     78	77.9
S-5    john   male   85     90     92	90
S-6    john   male   69     60     65	64.3
S-7    john   female 82     78     60	69.8
S-8    john   female 84     81     82	82.1
S-9    john   female 89     80     68	75.8
S-10   john   female 90     93     91	91.4
S-11   jane   male   42     46     65	54.7
S-12   jane   male   28     15     34	27.1
S-13   jane   male   49     68     75	67.7
S-14   jane   male   36     30     48	40.2
S-15   jane   male   58     58     62	60
S-16   jane   male   72     70     84	77.4
S-17   jane   female 65     61     70	66.3
S-18   jane   female 68     75     71	71.6
S-19   jane   female 62     50     55	54.9
S-20   jane   female 71     72     87	79.3