She detailed these equations in her book "How to Fold Paper in Half Twelve Times (opens in new tab)" (Historical Society of Pomona Valley, 2002). The prompt that led Gallivan to accomplish these feats ...

"I was the first person to ever fold paper in half nine, 10, 11 and 12 times." You may like Mathematicians just solved a 125-year-old problem, uniting 3 theories in physics; ...