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These are questions asked by love-algebra

How can i add "FourierSeries" package t...

love-algebra 25 Maple 16
fourier-series
February 12 2021
1 1

Hi
when I use this package, maple makes error like bellow. what is the problem ? thank u

How to solve an equation without RootOf...

love-algebra 25 Maple 2016
solve rootof
November 10 2020
1 3

Hello
I solved an equation using Maple . but in answer there is RootOf statement that I can't change to a simple statement without RootOf.

restart

``

``

((Lr2*(vo+vs)*sqrt(Lr1*Lr2)+vo*Lr1*sqrt(Lr1*Lr2))*sin(t*sqrt((Lr1+Lr2)/(Lr1*Lr2*cr)))*sqrt(cr*(Lr1+Lr2))+vs*t*Lr1*(Lr1+Lr2))/((Lr1+Lr2)^2*Lr1)

((Lr2*(vo+vs)*(Lr1*Lr2)^(1/2)+vo*Lr1*(Lr1*Lr2)^(1/2))*sin(t*((Lr1+Lr2)/(Lr1*Lr2*cr))^(1/2))*(cr*(Lr1+Lr2))^(1/2)+vs*t*Lr1*(Lr1+Lr2))/((Lr1+Lr2)^2*Lr1)``

 (1)

eq := ((Lr2*(vo+vs)*sqrt(Lr1*Lr2)+vo*Lr1*sqrt(Lr1*Lr2))*sin(t*sqrt((Lr1+Lr2)/(Lr1*Lr2*cr)))*sqrt(cr*(Lr1+Lr2))+vs*t*Lr1*(Lr1+Lr2))/((Lr1+Lr2)^2*Lr1)

((Lr2*(vo+vs)*(Lr1*Lr2)^(1/2)+vo*Lr1*(Lr1*Lr2)^(1/2))*sin(t*((Lr1+Lr2)/(Lr1*Lr2*cr))^(1/2))*(cr*(Lr1+Lr2))^(1/2)+vs*t*Lr1*(Lr1+Lr2))/((Lr1+Lr2)^2*Lr1)

 (2)

solve(eq, t)

-(Lr1*Lr2)^(1/2)*(Lr1*cr+Lr2*cr)^(1/2)*sin(RootOf(Lr1*sin(_Z)*(Lr1*cr+Lr2*cr)^(1/2)*((Lr1+Lr2)/(Lr1*Lr2*cr))^(1/2)*(Lr1*Lr2)^(1/2)*vo+Lr2*sin(_Z)*(Lr1*cr+Lr2*cr)^(1/2)*((Lr1+Lr2)/(Lr1*Lr2*cr))^(1/2)*(Lr1*Lr2)^(1/2)*vo+Lr2*sin(_Z)*(Lr1*cr+Lr2*cr)^(1/2)*((Lr1+Lr2)/(Lr1*Lr2*cr))^(1/2)*(Lr1*Lr2)^(1/2)*vs+_Z*Lr1^2*vs+_Z*Lr1*vs*Lr2))*(Lr1*vo+Lr2*vo+Lr2*vs)/(Lr1*(Lr1+Lr2)*vs)

 (3)

``

Download spr.mw

How can I simplify to an answer without RootOf?

Thank u

merging a many radical to a single radic...

love-algebra 25 Maple 2016
radical simplification combine
November 09 2020
1 1

Hi
I want to say maple convert this radicals to a single radical expr.

cos(sqrt(Lr1+Lr2)*t/(sqrt(Cr)*sqrt(Lr1)*sqrt(Lr2)))

convert to :

cos(sqrt((Lr1+Lr2)/(Cr*Lr1*Lr2))*t)
thank u .

how to find equation of intersection bet...

love-algebra 25 Maple 2016
solve
June 18 2019
1 7

Hi
i need to find equation of intersection between a plane(Z=0)  and 3d curve like below:

plane :  Z=0

curve:

sqrt(G*(2-G))+(1-G)*(arccos(G-1)+(1/5)*Pi)+k*sqrt(G*(2-G))*cos(sqrt((1+k)/k)*arccos(G-1)+(1/5)*Pi)+sqrt(k/(1+k))*(1-G)*k*sin(sqrt((1+k)/k)*arccos(G-1)+(1/5)*Pi)

I ploted Z=0 plane and that curve . it is like this .
i want equation of the pointed curve(curve equation of intersection between Z=  and curve )in bellow  such as k=f(G) .

best regards

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