add new bubble sort, better triang mats

table.tsv

@@ -1437,6 +1437,10 @@ M(⊢∘××⊣×∘⌊0.5+∘|÷⍨)N	Rounding N to nearest M (favouring away f
 (~0∊×∘|≤∘.≤⍨∘⍳∘≢)Bm	Is Bm an upper triangular matrix with diagonal?	Tacit	Monadic Function		Boolean/Logical	testif triangle NE northeast north-east table triangular?	https://tio.run/##SyzI0U2pTMzJT////1Hf1EdtExQ06gwedXQdnv6oY0bNo84lQEoPRPWuALIe9W4GkZ2LNBWgqo0VjB/1bjFUQINcFBtmACUNKDMMyRgwaUCZYXBjIPD/fwA	
 (~0∊×∘|≤∘.≥⍨∘⍳∘≢)Bm	Is Bm a lower triangular matrix with diagonal?	Tacit	Monadic Function		Boolean/Logical	testif triangle SW southwest south-west table triangular?	https://tio.run/##SyzI0U2pTMzJT////1Hf1EdtExQ06gwedXQdnv6oY0bNo84lQErvUefSR70rgKxHvZtBZOciTQWoamMF40e9WwwV0CAXRYYZACHIGAPKDTOAGgY3knLDkIz8/x8A	
 (~0∊×∘|≤∘.>⍨∘⍳∘≢)Bm	Is Bm a lower triangular matrix without diagonal?	Tacit	Monadic Function		Boolean/Logical	testif triangle SW southwest south-west table triangular? remove strict removing erasing erase eliminate eliminating delete deleting	https://tio.run/##SyzI0U2pTMzJT////1Hf1EdtExQ06gwedXQdnv6oY0bNo84lQErP7lHvCiD9qHcziOxcpKkAVWusYPyod4uhAhrkosAoAyAEGWJAqVEGUKPgBlJqFJKB//8DAA	
+(⊢≡⊢×∘.<⍨∘⍳∘≢)Nm	Is Nm an upper triangular matrix without diagonal?	Tacit	Monadic Function		Boolean/Logical	testif triangle NE northeast north-east table triangular? remove strict removing erasing erase eliminate eliminating delete deleting	https://tio.run/##SyzI0U2pTMzJT////1Hf1EdtExQ0HnUtetS5EEgenv6oY4aezaPeFUD6Ue9mENm5SFMBqtBYwfhR7xZDBTTIRYk5BlDSgGxzkEwAkwZkmwM3AQL//wcA	
+(⊢≡⊢×∘.≤⍨∘⍳∘≢)Nm	Is Nm an upper triangular matrix with diagonal?	Tacit	Monadic Function		Boolean/Logical	testif triangle NE northeast north-east table triangular?	https://tio.run/##SyzI0U2pTMzJT////1Hf1EdtExQ0HnUtetS5EEgenv6oY4beo84lj3pXAFmPejeDyM5FmgpQpcYKxo96txgqoEEuykwygJIGFJiEZAaYNKDAJLgZEPj/PwA	
+(⊢≡⊢×∘.≥⍨∘⍳∘≢)Nm	Is Nm a lower triangular matrix with diagonal?	Tacit	Monadic Function		Boolean/Logical	testif triangle SW southwest south-west table triangular?	https://tio.run/##SyzI0U2pTMzJT////1Hf1EdtExQ0HnUtetS5EEgenv6oY4beo86lj3pXAFmPejeDyM5FmgpQpcYKxo96txgqoEEu8k0yAEKQGQYUmmQANQluHoUmIZn3/z8A	
+(⊢≡⊢×∘.>⍨∘⍳∘≢)Nm	Is Nm a lower triangular matrix without diagonal?	Tacit	Monadic Function		Boolean/Logical	testif triangle SW southwest south-west table triangular? remove strict removing erasing erase eliminate eliminating delete deleting	https://tio.run/##SyzI0U2pTMzJT////1Hf1EdtExQ0HnUtetS5EEgenv6oY4ae3aPeFUD6Ue9mENm5SFMBqtBYwfhR7xZDBTTIhcUcwoYYACFIuwFuQ4hwjAHUHLhpFJmDZNr//wA	
 M(+⌿⊣∘.*⍨∘∪⊢∨⊢∘⍳)Js	Sum of M'th powers of positive divisors of Js	Tacit	Dyadic Function		Mathematical	sigma_x sigma_2 sigma_3 sigma_4 sigmax sigma2 sigma3 sigma4 σₓ(n) σ₂(n) σ₃(n) σ₄(n)		
 ((×⌿∘!-∘1)÷∘!¯1++⌿)N	Multivariate Beta Function	Tacit	Dyadic Function		Mathematical	B() Β() beta() Ꞵ		
 Mv(|2÷⍨+.×∘(¯1∘⌽-1∘⌽))Nv	Area of a polygon given Mv,Nv endpoints	Tacit	Dyadic Function		Mathematical	shoelaceformula		
@@ -2253,7 +2257,8 @@ X(f{⍺←⊢ ⋄ ⍺(⍺⍺⊣⊢)⍣⍵⍵⊢⍵}Bs)Y	If: replace/apply if Bs
 Is f{⍺←≢⍴⍵ ⋄ (⍺⊃⍴⍵)⍺⍺/[⍺]⍵}Y	Reduction (/) with f in dimension Is (default: last), rank unchanged	Dop	Ambivalent Monadic Function, Dyadic Function	Monadic Operator	Function Application	reduce insert over rowwise reducing folding axis row-wise horizontally		
 X(f{↑[⍵⍵](⊂[⍵⍵]⍺)⍺⍺⊂⍵}ax)Y	Run f on axes of X	Dop	Dyadic Function	Dyadic Operator	Function Application	onaxis apply dimensions		
 {X}(f{⍺←⊢ ⋄ 0::⍺ ⍵⍵ ⍵ ⋄ ⍺ ⍺⍺ ⍵}g)Y	Adverse: Apply f but if it errors, apply g	Dop	Ambivalent Monadic Function,Dyadic Function	Dyadic Operator	System	catch J assign onerror works noerror otherwise fallback fall-back		
-f{⌽@(1(⌽∨⊢)0<\⍤,2⍺⍺/⊢)⍣≡⍵}Y	Stable bubble sort using custom comparison function f (true:left precedes right)	Dop	Monadic Function	Monadic Operator	Mathematical	sinking customised customized defined sorting order		
+f{⍵⌷⍨⊂⍒∘.⍺⍺⍨⍵}Y	Stable bubble sort using custom comparison function f (true:left precedes right)	Dop	Monadic Function	Monadic Operator	Mathematical	sinking customised customized defined sorting order		
+f{⌽@(1(⌽∨⊢)0<\⍤,¯2⍺⍺/⊢)⍣≡⍵}Y	Stable bubble sort using custom comparison function f (true:left precedes right)	Dop	Monadic Function	Monadic Operator	Mathematical	sinking customised customized defined sorting order		
 (X{(⊂⍋(⍳≢⍵),⌊⍺⍺)⌷⍵,⍺⍺}Nv)Y	Insert X at fractional positions Nv in Y (≢Nv)=≢X	Dop	Monadic Function	Dyadic Operator	Structural	slotin		
 X(f{⍺ ⍺⍺{⍺ ⍺⍺⍣⍵⊢⍵⍵}⍵⍤0⊢⍵⍵}J)Y	Power: apply X∘f on Y J times	Dop	Dyadic Function	Dyadic Operator	Function Application	poweroperator while until inverse inversion application repeatedly repeating inverting iterating looping iterate array non-scalar multiple		
 I f{⍺⍺{⍺⍺⍣(⍵⍵ ⍵)⊢⍵}⍵⍵⍣⍺⊢⍵}g Y	Power: Iterating f on Y while condition g Y is true but at most I times	Dop	Dyadic Function	Dyadic Operator	Function Application	until count repeatedly apply application poweroperator stardiaeresis powerlimit while repeating looping limited counting iterate iteration	https://tio.run/##SyzI0U2pTMzJT////1Hf1EdtExSMFHQedcwwUKh@1LsLiKDUo97FGo96twKRAhBrPupaBKRqISJAOZAKiJCChrndo85FmgqGQJOMuaCGWlLT0P//AQ