A tithe barn was a type of barn used in the Middle Ages for storing the tithes - a tenth of the farm's produce which had to be given freely to the church.
There are many surviving examples of medieval tithe barns in England:
There are still many examples of tithe barns around England.
... then there is a repeated solution x, and this solution is real. (Geometrically, this means that the parabola described by the quadratic equation touches the x-axis in a ...