<p> Vectorise Stuff 10^-6 Scale avoid Divide 0 </p>

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&[DATE] &[TIME] - &[FILENAME]

f M Vectorise i 1 M rows range j 1 M cols range V i j el M i j el f eval : for for V 21 line :

You need that one for scaling grayscale image M Min Max Scale Max Min - (M M min - M max M min - 106 -^+ / (* Min + :

Mesh U, V  within the bounds L, H L H N xd U 0 : dx H L - N / : i 1 N 1 + range U i el L dx i * dx - (+ : for U 21 line 31 line :

Generate the symmetric square matrix x y f U V Sym r 1 : i 1 U rows range c 1 : j 1 V rows range M r c el U i el V j el f eval : c c 1 + : 21 line for r r 1 + : 31 line for M 31 line :

Discrete compactor L 2 π * - : H 2 π * : N 32 : U L H N xd : V U : 51 sys

Create/view friendly

x y f x sin y cos * :

Ω x y f U V Sym :

Ω Ω 0255 Scale :

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x f x sqrt :

Z f Ω Vectorise :

Z Z 0255 Scale :

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1. Red is transited via IrfanView. 2. Ω, Z: reset to original size, hide border