Not really any better, but you might enjoy playing with it:
vec2 =: ((+.@:(* {:) , {.@]) +.)~/@:(^@:j.)
Henry Rich
On 1/6/2018 5:07 PM, Jerry wrote:
I am a relative newbie and am trying to teach myself the intricacies
by addressing a simple problem: some geometric operations on the
surface of a unit sphere. The first step is to take latitude and
longitude angles and create a Cartesian vector pointing from the
center of the sphere to that point. I can do that via:
vec =: ((1 o. }:)*(2 o. {:)),((1 o. }:)*(1 o. {:)),(2 o. }:)
this verb yields the desired vector
[vec o. (1.25,_0.55)
0.110616 0.698401 _0.707107
+/([vec o. (1.25,_0.55))^2
1
Is there a shorter, less verbose way of writing the verb 'vec'?
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