New (much smaller) 2.4.1 exercise #95
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Exercise 2.4.1 was very long compared to the other exercises. I made a new exercise for 2.4.1, and moved the old exercise to 2.4.2 (and indicated it as a bonus exercise). I also restored 2.4.1.C (now 2.4.2.C), which was previously removed, likely in an attempt to make the exercise shorter, but without which some of the later exercises did not make sense.
The new 2.4.1 exercise makes you implement vector addition and dot products for a
Vec2Dtype, which later have to be made generic to support multiple number types.Things I considered including in the new 2.4.1 exercise but decided against:
vec * nwould work nicely, butn * vecis hard to implement generically because of E0210Vec2D<T>types withFrom/Into(e.g.Vec2D<i32>toVec2D<i64>): does not play nice with generics because of conflicting implementations from coreAny feedback or suggestions are welcome!