backward pass formulas

Author: vpj

docs/sitemap.xml

@@ -1086,7 +1086,7 @@
 
     <url>
       <loc>https://nn.labml.ai/transformers/flash/test.html</loc>
-      <lastmod>2025-07-30T16:30:00+00:00</lastmod>
+      <lastmod>2025-07-31T16:30:00+00:00</lastmod>
       <priority>1.00</priority>
     </url>