diff --git a/Zenitha b/Zenitha
index 7d7d6662..72299d26 160000
--- a/Zenitha
+++ b/Zenitha
@@ -1 +1 @@
-Subproject commit 7d7d66620b692fc2caa2fd6ec28086537758ef80
+Subproject commit 72299d268ede941967020c69b6bb30de2e48d907
diff --git a/assets/game/mechanicLib/common/timer.lua b/assets/game/mechanicLib/common/timer.lua
index 1bd9dd75..2ea7de71 100644
--- a/assets/game/mechanicLib/common/timer.lua
+++ b/assets/game/mechanicLib/common/timer.lua
@@ -18,7 +18,7 @@ local timer_drawFunc={
     float=function(_,time,time0)
         FONT.set(100,'bold')
         local text=("%.1f"):format(time/1000)
-        local alpha=MATH.listMix(floatMixList,time/time0)
+        local alpha=MATH.listLerp(floatMixList,time/time0)
         gc.setColor(0,0,0,alpha)
         GC.mStr(text,-2,-69,'center')
         GC.mStr(text,-1,-68,'center')
diff --git a/assets/game/mechanicLib/mino/survivor.lua b/assets/game/mechanicLib/mino/survivor.lua
index 1a194d3d..651c7558 100644
--- a/assets/game/mechanicLib/mino/survivor.lua
+++ b/assets/game/mechanicLib/mino/survivor.lua
@@ -38,9 +38,9 @@ function survivor.b2b_event_always(P)
 
         local wave=md.wave
         md.curWaveTime=math.floor(
-            wave<=40 and MATH.interpolate(wave,0,6000,40,4000) or
-            wave<=80 and MATH.interpolate(wave,40,4000,80,1500) or
-            max(MATH.interpolate(wave,80,1500,150,800),800)
+            wave<=40 and MATH.interpolate(0,6000,40,4000,wave) or
+            wave<=80 and MATH.interpolate(40,4000,80,1500,wave) or
+            max(MATH.interpolate(80,1500,150,800,wave),800)
         )
         md.waveTimer=md.curWaveTime
         GAME.send(nil,GAME.initAtk{
@@ -66,8 +66,8 @@ function survivor.cheese_event_always(P)
 
         local wave=md.wave
         md.curWaveTime=math.floor(
-            wave<=80 and MATH.interpolate(wave,0,3000,80,2000) or
-            wave<=150 and MATH.interpolate(wave,80,2000,150,2500) or
+            wave<=80 and MATH.interpolate(0,3000,80,2000,wave) or
+            wave<=150 and MATH.interpolate(80,2000,150,2500,wave) or
             math.max(2000-(wave-150)*10,1000)
         )
         md.waveTimer=md.curWaveTime
@@ -79,8 +79,8 @@ function survivor.cheese_event_always(P)
             time=wave<50 and 100e3/(50+wave)-1000 or 0,
             fatal=MATH.clamp(
                 (
-                    wave<100 and MATH.interpolate(wave,0,20,100,60) or
-                    wave<200 and MATH.interpolate(wave,100,60,200,100) or
+                    wave<100 and MATH.interpolate(0,20,100,60,wave) or
+                    wave<200 and MATH.interpolate(100,60,200,100,wave) or
                     100
                 )+math.floor((P:random()*2-1)*min(wave,100)/5),
                 0,100
@@ -100,9 +100,9 @@ function survivor.spike_event_always(P)
 
         local wave=md.wave
         md.curWaveTime=floor(
-            wave<=10 and MATH.interpolate(wave,0,20e3,10,15e3) or
-            wave<=30 and MATH.interpolate(wave,10,15e3,30,12e3) or
-            max(MATH.interpolate(wave,30,12e3,60,10e3),10e3)
+            wave<=10 and MATH.interpolate(0,20e3,10,15e3,wave) or
+            wave<=30 and MATH.interpolate(10,15e3,30,12e3,wave) or
+            max(MATH.interpolate(30,12e3,60,10e3,wave),10e3)
         )
         md.waveTimer=md.curWaveTime
         for i=1,3 do
diff --git a/assets/game/minomap.lua b/assets/game/minomap.lua
index 41011707..a1501ad2 100644
--- a/assets/game/minomap.lua
+++ b/assets/game/minomap.lua
@@ -6,6 +6,11 @@ local gc_setColor,gc_setLineWidth=gc.setColor,gc.setLineWidth
 local gc_draw,gc_line=gc.draw,gc.line
 local gc_circle,gc_polygon=gc.circle,gc.polygon
 
+local linear=MATH.interpolate
+local expAppr=MATH.expApproach
+local dist=MATH.distance
+local tau=MATH.tau
+
 
 -- Y X
 --  *
@@ -104,7 +109,7 @@ local bridges={}
 local function _newBridge(m1,m2)
     local x1,y1=m1.x,m1.y
     local x2,y2=m2.x,m2.y
-    local dist=MATH.distance(x1,y1,x2,y2)
+    local dist=dist(x1,y1,x2,y2)
 
     -- Cut in-mode parts
     local p1,p2=(m1.r*1.2)/dist,1-(m2.r*1.2)/dist
@@ -237,7 +242,7 @@ local function _onMode(x,y)
     x,y=SCR.xOy_m:inverseTransformPoint(x,y)
     x,y=cam.transform:inverseTransformPoint(x,y-100)
     for _,m in next,modes do
-        if m.enable and MATH.distance(x,y,m.x,m.y)<m.r*1.26 then
+        if m.enable and dist(x,y,m.x,m.y)<m.r*1.26 then
             return m
         end
     end
@@ -316,7 +321,7 @@ function map:update(dt)
     -- end
     for _,m in next,modes do
         if m.enable then
-            m.active=MATH.expApproach(m.active,(m==focused) and 1 or 0,dt*6)
+            m.active=expAppr(m.active,(m==focused) and 1 or 0,dt*6)
         end
     end
     for _,b in next,bridges do
@@ -366,7 +371,6 @@ function map:update(dt)
     end
 end
 
-local tau=MATH.tau
 function map:draw()
     gc_replaceTransform(SCR.xOy_m)
     gc_translate(0,100)
@@ -377,8 +381,8 @@ function map:draw()
         if b.enable then
             local x1,y1,x2,y2=b.x1,b.y1,b.x2,b.y2
             if animations[b] then
-                local t=MATH.expApproach(0,1,animations[b].t*2.6)
-                x2,y2=MATH.interpolate(t,0,x1,1,x2),MATH.interpolate(t,0,y1,1,y2)
+                local t=expAppr(0,1,animations[b].t*2.6)
+                x2,y2=linear(0,x1,1,x2,t),linear(0,y1,1,y2,t)
             end
             if x1~=x2 or y1~=y2 then
                 gc_setColor(1,1,1,.8)
@@ -390,7 +394,7 @@ function map:draw()
                 for i=0,.75,.25 do
                     local t=(b.timer/2.6+i)%1
                     gc_setColor(1,1,1,-t*(t-1)*4)
-                    gc_circle('fill',MATH.interpolate(t,0,x1,1,x2),MATH.interpolate(t,0,y1,1,y2),6,6)
+                    gc_circle('fill',linear(0,x1,1,x2,t),linear(0,y1,1,y2,t),6,6)
                 end
             end
         end
@@ -403,7 +407,7 @@ function map:draw()
             gc_translate(m.x,m.y)
             gc_scale(1+m.active*.1)
             if animations[m] then
-                gc_scale(MATH.expApproach(0,1,animations[m].t*6.26))
+                gc_scale(expAppr(0,1,animations[m].t*6.26))
             end
             gc_rotate(-cam.a)
 
diff --git a/assets/game/mode/mino/exterior/sprint_hide_40.lua b/assets/game/mode/mino/exterior/sprint_hide_40.lua
index 314a4b92..4aa54b66 100644
--- a/assets/game/mode/mino/exterior/sprint_hide_40.lua
+++ b/assets/game/mode/mino/exterior/sprint_hide_40.lua
@@ -8,8 +8,8 @@ return {
         event={
             afterSpawn=function(P)
                 local pieceCount=MATH.clamp(#P.dropHistory,0,99)
-                P.settings.pieceVisTime=math.floor(MATH.interpolate(pieceCount,0,6e3,99,2e3))
-                P.settings.pieceFadeTime=math.floor(MATH.interpolate(pieceCount,0,3e3,99,1e3))
+                P.settings.pieceVisTime=math.floor(MATH.interpolate(0,6e3,99,2e3,pieceCount))
+                P.settings.pieceFadeTime=math.floor(MATH.interpolate(0,3e3,99,1e3,pieceCount))
             end,
             afterClear={
                 mechLib.mino.sprint.event_afterClear[40],
diff --git a/assets/game/mode/mino/interior/dig.lua b/assets/game/mode/mino/interior/dig.lua
index b2371089..2295bf4c 100644
--- a/assets/game/mode/mino/interior/dig.lua
+++ b/assets/game/mode/mino/interior/dig.lua
@@ -22,9 +22,9 @@ return {
         if P and P.finished=='AC' then
             PROGRESS.setInteriorScore('dig',
                 P.gameTime<=30e3  and 160 or
-                P.gameTime<=60e3  and MATH.interpolate(P.gameTime,60e3,120,30e3,160) or
-                P.gameTime<=120e3 and MATH.interpolate(P.gameTime,120e3,90,60e3,120) or
-                math.max(MATH.interpolate(P.gameTime,200e3,40,120e3,90),0)
+                P.gameTime<=60e3  and MATH.interpolate(60e3,120,30e3,160,P.gameTime) or
+                P.gameTime<=120e3 and MATH.interpolate(120e3,90,60e3,120,P.gameTime) or
+                math.max(MATH.interpolate(200e3,40,120e3,90,P.gameTime),0)
             )
         end
     end,
diff --git a/assets/game/mode/mino/interior/marathon.lua b/assets/game/mode/mino/interior/marathon.lua
index 06b8c030..c8afc72d 100644
--- a/assets/game/mode/mino/interior/marathon.lua
+++ b/assets/game/mode/mino/interior/marathon.lua
@@ -55,10 +55,10 @@ return {
         PROGRESS.setInteriorScore('sprint',math.min(P.modeData.stat.line*4/3,40))
         PROGRESS.setInteriorScore('marathon',
             P.modeData.stat.line>=200 and 160 or
-            P.modeData.stat.line>=130 and MATH.interpolate(P.modeData.stat.line,130,120,200,160) or
-            P.modeData.stat.line>=80  and MATH.interpolate(P.modeData.stat.line,80,90,130,120) or
-            P.modeData.stat.line>=40  and MATH.interpolate(P.modeData.stat.line,40,40,80,90) or
-            MATH.interpolate(P.modeData.stat.line,0,0,40,40)
+            P.modeData.stat.line>=130 and MATH.interpolate(130,120,200,160,P.modeData.stat.line) or
+            P.modeData.stat.line>=80  and MATH.interpolate(80,90,130,120,P.modeData.stat.line) or
+            P.modeData.stat.line>=40  and MATH.interpolate(40,40,80,90,P.modeData.stat.line) or
+            MATH.interpolate(0,0,40,40,P.modeData.stat.line)
         )
     end,
     resultPage=function(time)
diff --git a/assets/game/mode/mino/interior/sprint.lua b/assets/game/mode/mino/interior/sprint.lua
index 0a0b320d..ea5fe180 100644
--- a/assets/game/mode/mino/interior/sprint.lua
+++ b/assets/game/mode/mino/interior/sprint.lua
@@ -31,9 +31,9 @@ return {
             PROGRESS.setInteriorScore('marathon',30)
             PROGRESS.setInteriorScore('sprint',
                 P.gameTime<60e3  and 200 or
-                P.gameTime<90e3  and MATH.interpolate(P.gameTime,90e3,140,60e3,200) or
-                P.gameTime<180e3 and MATH.interpolate(P.gameTime,180e3,90,90e3,140) or
-                P.gameTime<300e3 and MATH.interpolate(P.gameTime,300e3,40,180e3,90) or
+                P.gameTime<90e3  and MATH.interpolate(90e3,140,60e3,200,P.gameTime) or
+                P.gameTime<180e3 and MATH.interpolate(180e3,90,90e3,140,P.gameTime) or
+                P.gameTime<300e3 and MATH.interpolate(300e3,40,180e3,90,P.gameTime) or
                 40
             )
         else
diff --git a/assets/scene/zeta_input_method.lua b/assets/scene/zeta_input_method.lua
index c84c849b..aa7fe65e 100644
--- a/assets/scene/zeta_input_method.lua
+++ b/assets/scene/zeta_input_method.lua
@@ -60,8 +60,8 @@ local function parseStroke(input)-- 横 竖 撇 捺 折
     if s[1]<areaX-areaR and s[#s-1]<areaX-areaR or s[1]>areaX+areaR and s[#s-1]>areaX+areaR then return end
     if s[2]<areaY-areaR and s[#s]<areaY-areaR or s[2]>areaY+areaR and s[#s]>areaY+areaR then return end
 
-    w[1]=-w[5]+min(MATH.interpolate(width/height,1/2.6,0,2.6,1),1)
-    w[2]=-w[5]+min(MATH.interpolate(height/width,1.6,0,2.6,1),1)
+    w[1]=-w[5]+min(MATH.interpolate(1/2.6,0,2.6,1,width/height),1)
+    w[2]=-w[5]+min(MATH.interpolate(1.6,0,2.6,1,height/width),1)
     w[3]=-w[5]*.62+1-abs(dir/pi-.8)*3
     w[4]=-w[5]*.62+1-abs(dir/pi-.4)