/home/bill/Lucas - Universal Force/individual formulae developments/d-dt Rpcs^5*t*_cos - 1.txt www.BillHowell.ca 24Sep2019 initial based on past work 15Oct2019 - WRONG!!!!!! I cannot drop : ∂[∂(t): Rpcs(POIo(t),t=0)^(-5)*(t=0)*(cos(Aθpc(POIo(t),t=0)) - 1)] = + Rpcs(POIo(t),t=0)^(-5)*(cos(Aθpc(POIo(t),t=0)) - 1) This file is used for the "correct aqs far as I can tell" derivations of equations (4-[32-37]). Cool! derivative = original expression without t at t=0 !!! /********************* 24Sep2019 >>>>>> ∂[∂(t): Rpcs(POIo(t),t)^(-5)*t*(cos(Aθpc(POIo(t),t)) - 1)] = 0 /% 1) ∂[∂(t): Rpcs(POIo(t),t)^(-5)*t*(cos(Aθpc(POIo(t),t)) - 1)] a) = ∂[∂(t): Rpcs(POIo(t),t)^(-5)]*t*cos(Aθpc(POIo(t),t))] b) - ∂[∂(t): Rpcs(POIo(t),t)^(-5) *t] /*+-----+ /* looking at (1a) /% 2) ∂[∂(t): Rpcs(POIo(t),t)^(-5) *t *cos(Aθpc(POIo(t),t))] a) = ∂[∂(t): Rpcs(POIo(t),t)^(-5)] *t *cos(Aθpc(POIo(t),t)) b) + Rpcs(POIo(t),t)^(-5) *∂[∂(t): t] *cos(Aθpc(POIo(t),t)) c) + Rpcs(POIo(t),t)^(-5) *t *∂[∂(t): cos(Aθpc(POIo(t),t))] /* from section "∂[∂(t): Rpcs(POIo(t),t)^(-α)]" : /% ∂[∂(t): Rpcs(POIo(t),t)^(-α)] = α*Vons(PART)*Rpcs(POIo(t),t)^(-α - 1)*cos(Aθpc(POIo(t),t)) /* therefore /% d) ∂[∂(t): Rpcs(POIo(t),t)^(-5)] = 5*Vons(PART)*Rpcs(POIo(t),t)^(-6)*cos(Aθpc(POIo(t),t)) /* noting /% e) ∂[∂(t): t] = 1 f) ∂[∂(t): cos(Aθpc(POIo(t),t))] = -sin(Aθpc(POIo(t),t))*∂[∂(t): Aθpc(POIo(t),t))] /* from "Howell - independent math for Lucas Universal Force, Chapter 4.txt" section "∂[∂(t): Aθpc(POIo(t),t))]" : /% g) ∂[∂(t): Aθpc(POIo(t),t)] = Vons(PART)*sin(Aθpc(POIo(t),t))/Rpcs(POIo(t),t) /* therefore /% h) ∂[∂(t): cos(Aθpc(POIo(t),t))] = -sin(Aθpc(POIo(t),t))*Vons(PART)*sin(Aθpc(POIo(t),t))/Rpcs(POIo(t),t) = (-1)*Vons(PART)*sin(Aθpc(POIo(t),t))^2/Rpcs(POIo(t),t) /* substitute (2d,e,h) into (2a-c) /% 3) ∂[∂(t): Rpcs(POIo(t),t)^(-5) *t *cos(Aθpc(POIo(t),t))] a) = 5*Vons(PART)*Rpcs(POIo(t),t)^(-6)*cos(Aθpc(POIo(t),t)) *t *cos(Aθpc(POIo(t),t)) b) + Rpcs(POIo(t),t)^(-5) *1 *cos(Aθpc(POIo(t),t)) c) + Rpcs(POIo(t),t)^(-5) *t *(-1)*Vons(PART)*sin(Aθpc(POIo(t),t))^2/Rpcs(POIo(t),t) /* collecting & rearranging terms /% 4) ∂[∂(t): Rpcs(POIo(t),t)^(-5) *cos(Aθpc(POIo(t),t)) *t ] a) = 5*Vons(PART)*Rpcs(POIo(t),t)^(-6)*cos(Aθpc(POIo(t),t))^(2) *t b) + Rpcs(POIo(t),t)^(-5)*cos(Aθpc(POIo(t),t)) c) - Vons(PART)*Rpcs(POIo(t),t)^(-6)*sin(Aθpc(POIo(t),t))^(2) *t /*+-----+ /* looking at (1b) /% 5) ∂[∂(t): Rpcs(POIo(t),t)^(-5) *t] a) = ∂[∂(t): Rpcs(POIo(t),t)^(-5)] *t b) + Rpcs(POIo(t),t)^(-5) *∂[∂(t): t] /* sub (2d,e) into (5a,b) /% 6) ∂[∂(t): Rpcs(POIo(t),t)^(-5) *t] a) = 5*Vons(PART)*Rpcs(POIo(t),t)^(-6)*cos(Aθpc(POIo(t),t)) *t b) + Rpcs(POIo(t),t)^(-5) *1 /*+-----+ sub (4,6) into (1) /% 7) ∂[∂(t): Rpcs(POIo(t),t)^(-5)*t*(cos(Aθpc(POIo(t),t)) - 1)] a) = + 5*Vons(PART)*Rpcs(POIo(t),t)^(-6)*cos(Aθpc(POIo(t),t))^(2) *t b) + Rpcs(POIo(t),t)^(-5)*cos(Aθpc(POIo(t),t)) c) - Vons(PART)*Rpcs(POIo(t),t)^(-6)*sin(Aθpc(POIo(t),t))^(2) *t d) - 5*Vons(PART)*Rpcs(POIo(t),t)^(-6)*cos(Aθpc(POIo(t),t)) *t e) - Rpcs(POIo(t),t)^(-5) /* At time t=0 /% 8) ∂[∂(t): Rpcs(POIo(t),t=0)^(-5)*(t=0)*(cos(Aθpc(POIo(t),t=0)) - 1)] = + Rpcs(POIo(t),t=0)^(-5)* cos(Aθpc(POIo(t),t=0)) - Rpcs(POIo(t),t=0)^(-5) /* finally /% (mathH) ∂[∂(t): Rpcs(POIo(t),t=0)^(-5)*(t=0)*(cos(Aθpc(POIo(t),t=0)) - 1)] = + Rpcs(POIo(t),t=0)^(-5)*(cos(Aθpc(POIo(t),t=0)) - 1) (endMath)