Unit tests would be highly unlikely to catch most of those.
"a formula written on paper in pencil was improperly transcribed", "neglect to properly "seed" the program's random number generator, A HW bug that's not close to obvious numbers to check, intentionally inserted bugs, input outside of the intended design, etc.
"a formula written on paper in pencil was improperly transcribed", "neglect to properly "seed" the program's random number generator, A HW bug that's not close to obvious numbers to check, intentionally inserted bugs, input outside of the intended design, etc.