[d:Bc calculator]   [s:b][p:bc]
[d:Calculator]      [s:c][p:calc]
[d:Desk calculator] [s:d][p:dc]
[d:Mathematician's assistant][s:m][p:vaxima]
[d:Statistics]      [s:s][m:statistics]
[d:S]               [s:S][p:S]
[d:Time series]     [s:t][m:timeseries]
