[boost] Re: physical quantities/dimensional analysis (was Re: runtime unit-modifiablephysical-quantitiesusingpqs1-00-01)

From: Dan W. (danw_at_[hidden])
Date: 2004-01-11 16:07:50

Phil Richards wrote:
> I have never argued that SI is the only thing - in all libraries SI is
> just a special case.  The thing I'm trying to find out is what other
> dimensional analysis use-cases there are.  Dimensional analysis is about
> mixing things of different unit and getting the right answer - I really
> think we need (real) examples of non-physical quantity application areas.

Byte-number
Byte-count
Word-number
Word-count
Frame-number
Frame-count
Multi-media-timer-interrupt-number
Multi-media-timer-interrupt-count
Seconds-number
Seconds-count
Interrupts-per-second
Interrupts-per-frame
Frames-per-second
Interrupts-per-frame
Bytes-per-second
Bytes-per-frame
Bytes-per-mm-interrupt
Complex-volts
Complex-amps
complex-volts-per-second
complex-volts-per-complex-amps
complex-amps-per-complex-volts
position1d (as opposed to length)
position2d
position3d
vector1d
vector2d
vector3d
angle1d
euler-angle
quaternion
(octonion)
light-spectrum
specular-spectrum
diffuse-spectrum
light-scattering
occular-sensitivity-spectrum
monitor-spectral-affine-function
gamma-correction
color-rgb
color-yuv
color-rgba
vertical-pixel-distance
horizontal-pixel-distance
absolute-pixel-distance
radiation (zaps per second per ft)
zaps
object-count
class-count
objects-per-class
allocated-bytes
allocated-bytes-diff
allocated-bytes-per-object-diff-average
allocation-alignment-inefficiency
allocations-per-second
deallocations-per-second
num-bytes-allocated-per-frame
num-bytes-deallocated-per-frame
per-frame-leakage
baud-rate
average-packet-loss
average-ip-hops-per-nautical-mile
average-std-vector-alloc-size
num-locks-per-second
num-locks-per-frame
avg-blockings-per-locking
voltage noise (mV/root-Hz)
current noise (nA/root-Hz)
magnetic emi noise
electric emi noise
polarization angle
polarizer angle
polarizer opacity (where addition works to kind of subtraction)
rate of universal expansion (==(km/sec)/parsec == time^(-1) yet != Hz)
torque (Newtons * meters == force * distance  yet != work or energy)
angle
tax
probability<>
standard-deviation<>
sigma
two-sigma
three-sigma
three-sigma-ellipse
euro
yen
per-capita

...gotta get some work done...

Cheers!