Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/setup-dotnet@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Possible null reference argument for parameter 'a' in 'LagrangeBasis LagrangeBasis.operator +(in LagrangeBasis a, in LagrangeBasis b)'.

Possible null reference argument for parameter 'b' in 'LagrangeBasis LagrangeBasis.operator +(in LagrangeBasis a, in LagrangeBasis b)'.

The result of the expression is always 'true' since a value of type 'Banderwagon' is never equal to 'null' of type 'Banderwagon?'

Cannot convert null literal to non-nullable reference type.

Possible null reference argument for parameter 'a' in 'LagrangeBasis LagrangeBasis.operator +(in LagrangeBasis a, in LagrangeBasis b)'.

Possible null reference argument for parameter 'b' in 'LagrangeBasis LagrangeBasis.operator +(in LagrangeBasis a, in LagrangeBasis b)'.

The result of the expression is always 'true' since a value of type 'Banderwagon' is never equal to 'null' of type 'Banderwagon?'