Pat Naughtin wrote in USMA 16217:
>Within the International System of Units, the introduction of the quad and
>the steriquad would produce these derived units:
>
>Derived quantity Unit name Unit symbol Notes
>
>plane angle quad q m/m
>solid angle steriquad Q m2/ m2
>angular velocity quad per second q/s (m/m)/s
>angular acceleration quad per second squared q/s2 (m/m)/s2
>radiant intensity watt per steriquad W/Q JQ/s
>radiance watt per square metre steriquad W/(m2.Q) J m2.Q/s
>luminous flux lumen lm cd.Q (candela steriquad)
>luminous intensity candela lm/sr cd.Q/Q
>luminance lumen per square metre steradian lm/(m2.sr) cd/m2.Q
>
>I am aware that I am not inventing anything new here. I am simply trying to
>rethink some of the thoughts of the early developers of the first metric
>system in the early 1790s.
Interesting idea, but it would not be welcomed by mathematicians. For example:
d sin x/dx = cos x
would become
d sin x/dx = (2 cos x)/�
and so on.
Joseph B.Reid
17 Glebe Road West
Toronto M5P 1C8 TEL. 416-486-6071
