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Euler-Lagrange Differential Equation -- from Wolfram MathWorld

The Euler-Lagrange differential equation is the fundamental equation of calculus of variations. It states that if J is defined by an integral of the form J=intf(t,y,y^.)dt, (1) where y^.=(dy)/(dt), (2) then J has a stationary value if the Euler-Lagrange differential equation (partialf)/(partialy)-d/(dt)((partialf)/(partialy^.))=0 (3) is satisfied. If time-derivative notation y^. is replaced instead by space-derivative notation y_x, the equation becomes ...



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Euler-Lagrange Differential Equation -- from Wolfram MathWorld

https://mathworld.wolfram.com/Euler-LagrangeDifferentialEquation.html

The Euler-Lagrange differential equation is the fundamental equation of calculus of variations. It states that if J is defined by an integral of the form J=intf(t,y,y^.)dt, (1) where y^.=(dy)/(dt), (2) then J has a stationary value if the Euler-Lagrange differential equation (partialf)/(partialy)-d/(dt)((partialf)/(partialy^.))=0 (3) is satisfied. If time-derivative notation y^. is replaced instead by space-derivative notation y_x, the equation becomes ...



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https://mathworld.wolfram.com/Euler-LagrangeDifferentialEquation.html

Euler-Lagrange Differential Equation -- from Wolfram MathWorld

The Euler-Lagrange differential equation is the fundamental equation of calculus of variations. It states that if J is defined by an integral of the form J=intf(t,y,y^.)dt, (1) where y^.=(dy)/(dt), (2) then J has a stationary value if the Euler-Lagrange differential equation (partialf)/(partialy)-d/(dt)((partialf)/(partialy^.))=0 (3) is satisfied. If time-derivative notation y^. is replaced instead by space-derivative notation y_x, the equation becomes ...

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      Euler-Lagrange Differential Equation -- from Wolfram MathWorld
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      The Euler-Lagrange differential equation is the fundamental equation of calculus of variations. It states that if J is defined by an integral of the form J=intf(t,y,y^.)dt, (1) where y^.=(dy)/(dt), (2) then J has a stationary value if the Euler-Lagrange differential equation (partialf)/(partialy)-d/(dt)((partialf)/(partialy^.))=0 (3) is satisfied. If time-derivative notation y^. is replaced instead by space-derivative notation y_x, the equation becomes ...
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      The Euler-Lagrange differential equation is the fundamental equation of calculus of variations. It states that if J is defined by an integral of the form J=intf(t,y,y^.)dt, (1) where y^.=(dy)/(dt), (2) then J has a stationary value if the Euler-Lagrange differential equation (partialf)/(partialy)-d/(dt)((partialf)/(partialy^.))=0 (3) is satisfied. If time-derivative notation y^. is replaced instead by space-derivative notation y_x, the equation becomes ...

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      The Euler-Lagrange differential equation is the fundamental equation of calculus of variations. It states that if J is defined by an integral of the form J=intf(t,y,y^.)dt, (1) where y^.=(dy)/(dt), (2) then J has a stationary value if the Euler-Lagrange differential equation (partialf)/(partialy)-d/(dt)((partialf)/(partialy^.))=0 (3) is satisfied. If time-derivative notation y^. is replaced instead by space-derivative notation y_x, the equation becomes ...

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      The Euler-Lagrange differential equation is the fundamental equation of calculus of variations. It states that if J is defined by an integral of the form J=intf(t,y,y^.)dt, (1) where y^.=(dy)/(dt), (2) then J has a stationary value if the Euler-Lagrange differential equation (partialf)/(partialy)-d/(dt)((partialf)/(partialy^.))=0 (3) is satisfied. If time-derivative notation y^. is replaced instead by space-derivative notation y_x, the equation becomes ...
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