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You can replace the explicit properties with shadow properties. Which you already did indirectly with HasForeignKey fluent API, but following is the explicit definition matching the original definition which also correctly configures the max length for string data types:

How can you expect to get the correct result if you calculate cosh(x) instead of csc(x)? You're using the hyperbolic cosine to calcuate the cosecant. I think it is obvious why your results are not accepted.

You use sinh(x) to calculate sec(x) and cos(x) to calculate cot(x).

You're confusing mathematical functions. That's not a Lua programming problem.

I suggest you spend a few hours on researching trigonometric functions.

https://en.wikipedia.org/wiki/Trigonometric_functions

Such values are calcuated using the correct formula or function. Not by using any function of the math library that has a similar name.

cosh is deprecated since Lua 5.3 btw.

You can use math.tan to calculate the tangens of your angle.

For secant, cosecant and cotangens you'll have to implement your own functions.

Also note that the number of decimals might cause issue in result validation. Make sure it is ok to round to 1 decimal.

Example:

There is no function to calculate the cotangent of an angle. So we define one.