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Talk:Gradient descent: Difference between revisions
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→an easier to read simpler expression of the bi-variate function used for this task: added a new talk section.
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:In general, I wait for a minimum of 3 months and 20 implementations before I promote one of my tasks out of draft. That way there is plenty of opportunity for discussion and tweaks if necessary. As far as I'm concerned, this doesn't even rise to the level of a draft yet, let alone a full task. Reverted back to draft (again). --[[User:Thundergnat|Thundergnat]] ([[User talk:Thundergnat|talk]]) 20:57, 1 July 2019 (UTC)
== an easier to read simpler expression of the bi-variate function used for this task ==
Use this algorithm to search for minimum values of the bi-variate function:
<big><big><big> ƒ(x, y) = (x-1)<sup>2</sup>''e''<sup>-(y<sup>2</sup>)</sup> + y(y+2)''e''<sup>-2(x<sup>2</sup>)</sup> </big></big></big>
─or eliding the negatives in the exponents─
<big><big><big> ƒ(x, y) = (x-1)<sup>2</sup> ÷ ''e''<sup>y<sup>2</sup></sup> + y(y+2) ÷ ''e''<sup>2(x<sup>2</sup>)</sup> </big></big></big>
A bigger font was used to clearly show an exponent used in the exponent of <big>''e''</big>. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 15:09, 5 September 2020 (UTC)
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