Entries from 2022-11-01 to 1 month

function

√(√a2−b2+x)2+y2+√(t−x)2+y2=a+√b2+t2 T.theodor 2022.11.24.

Period

electron ハ、positoron 之強弱ニヨル。 T.theodor 2022.11.23.

function

tanθ=±b√t2−a2/a√a2+b2+at theodor 2022.11.23.

function

limx3+y3−axy/xy= T.theodor 2022.11.23.

ellipse

y= ±b√1−t2/at±a√a2−b2x±b√1−t2√a2−b2/at±a√a2−b2 T.theodor 2022.11.23.

function

f(x)+f(y)=0 y≠f(x) Δy/つΔx≠f(x)' T.theodor 2022.11.23.

function

yn=axn+bxn-1…+z Δy/てΔx=±f(x)'/nyn-1 T.theodor 2022.11.23.

function

x3+y3−axy=0 y=tx y=at2/t3+1 Δy/Δt=2at−at4/(t3+1)2 t→√2 y→2a/2√2+1 θ→90° x→0 x=at/t3+1 Δx/Δt=2at−2at3/(t3+1)2 t→1 x→a/2 θ→90° x→0 T.theodor 2022.11.22.

function

x3+y3−axy=0 limy/x=−∞ T.theodor 2022.11.22.

logical fallacy of Gruppentheorie

solution of algebraic equation ハ、係数ノ個数、序列ト無関係デアリ、groop theory ハ不成立也。 T.theodor 2022.11.22.

轉注考

轉注考 説文解字曰五曰轉注轉注者建類一首同意相受考老是也。爾雅曰允孚亶展諶誠亮詢信也。展諶允慎亶誠也。粵于爰曰也。爰粵于也。全テ同訓也。考ハ、老也。老ハ、考也。考老、同意相轉ジテ注ス。轉注ハ、老ハ、考也ヨリ派生シ考字生ズ。轉注ハ、意ヲ以テシ…

function

αxn+βyn+γxy=0 f(x)=αxn+γͱx+βͱn f(y)=βyn+γͱy+αͱn T.theodor 2022.11.21.

function

xn+xn-1…+x=1/an 1/n+1<α<1/n n→∞ α→1/n+1 T.theodor 2022.11.20.

function

xn+xn-1…+x=1/an 1/n+1<α<1/n n→∞ α→1/n+1 T.theodor 2022.11.20.

ellipse

L=b2/±b√1−t2/a−b T.theodor 2022.11.20.

logical fallacy of radius of convergence

liman/an+1=liman+1/an=1 T.theodor 2022.11.20.

function

an=n(n+1)/2 Σ1/an=2−2/nnn(n+1) limΣ1/an=2 T.theodor 2022.11.20.

function

f(x)=logx Δx/てΔy=0 T.theodor 2022.11.20.

extreme value theorem

f(x),[a,b] Δy/Δx=0 x=α',…,ω' m≦f(x)≦M limf(c,d)=±∞ (c

function

lim sin1/x=0 (x→0) T.theodor 2022.11.20.

function

f(x)=nx Δy/Δx=0 T.theodor 2022.11.20.

function

circumscribed circle a/sinα:b/rsinβ:c/sinγ α=β=γ=120° T.theodor 2022.11.19.

function

circumscribed circle a/sinα:b/rsinβ:c/sinγ α=β=γ=120° T.theodor 2022.11.19.

function

f(a,b…,z)=f(a)+f(b)…+f(z) f(a)=a’an+b’an-1…+α−k T.theodor 2022.11.19.

function

f(a,b…,z)=f(a)+f(b)…+f(z) z=±n√f(a)+f(b)…+f(y)−k T.theodor 2022.11.19.

function

f(x,y)=f(x)+f(y) f(x)=−f(y)+k f(y)=−f(x)+k α

function

f’(x)=nax na=αβ√γΔ T.theodor 2022.11.18.

function

f(x)=n√a’xn+b’xn-1…+z’ T.theodor 2022.11.18.

function

circle α=r/r/1=1 ellipse α=b/a T.theodor 2022.11.18.

function

f(x)=a’xn+b’xn-1…+z s=ap,bq x=α,β T.theodor 2022.11.18.