One Hundred Problems in Elementary Mathematics how a girl can vanish

how a girl can vanish from a sheet of plate glass without trapdoors

and other architectural elements

antichrist

orchestral suites

once thought to be irreconcilable

One Hundred Problems in Elementary Mathematics how a girl can vanishBoth a challenge to mathematically inclined readers and a useful supplementary text for high school and college courses, One Hundred Problems in Elementary Mathematics presents an instructive, stimulating collection of problems. Many problems address such matters as numbers, equations, inequalities, points, polygons, circles, ellipses, space, polyhedra, and spheres. An equal number deal with more amusing or more practical subjects, such as a picnic