calc implements the mathematical formulas for modelling road cycling power as outlined by the paper 'Validation of a Mathematical Model for Road Cycling Power' by Martin et al and other miscellaenous cycling power related formulas.
$ go install github.com/scheibo/calc
$ ./calc -t=16m05s -d=4800 -gr=8.125 -mr=70
16:05 (4.80 km @ 8.12%) = 357.37 W (5.11 W/kg) = AT:25.44 W + RR:15.54 W + WB:0.68 W + PE:315.70 W
The generated GoDoc can be viewed at godoc.org/github.com/scheibo/calc.