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Magnitude, Signum, and Log


   | 1e160 j ¯12
1E160

   | 0 j ⌈/⍳0
1.79769E308


   | (⌊/⍳0) j ⌈/⍳0
DOMAIN ERROR
   | (⌊/⍳0) j ⌈/⍳0
     ∧

   (⌊/⍳0) j ⌈/⍳0
1.79769E308J¯1.79769E308

   × (⌊/⍳0) j ⌈/⍳0
0.707107J¯0.707107

   ⍟ (⌊/⍳0) j ⌈/⍳0
710.129J¯0.785398

   ○ ¯0.25
¯0.785398
   (⍟2*0.5) + ⍟⌊/⍳0
710.129