Minkowski's question mark function

Summary

Minkowski's question mark function is a function^[1]. It draws 168 Wikipedia views per month (function category, ranking #35 of 114).^[2]

Key Facts

• Minkowski's question mark function's image is recorded as Minkowski question mark.svg^[3].
• Minkowski's question mark function's image is recorded as Minkowski'sQuestionMarkLessTheIdentity.png^[4].
• Minkowski's question mark function's instance of is recorded as function^[5].
• Hermann Minkowski is named after Minkowski's question mark function^[6].
• question mark is named after Minkowski's question mark function^[7].
• Minkowski's question mark function's Commons category is recorded as Minkowski's question-mark function^[8].
• Minkowski's question mark function's Freebase ID is recorded as /m/054ftt^[9].
• Minkowski's question mark function's defining formula is recorded as \operatorname{?}\left(a_0+\frac1{a_1+\frac1{a_2+\dotsb}}\right)=a_0+2\sum_{n=1}^\infty\frac{(-1)^{n+1}}{2^{a_1+\dotsb+a_n}}^[10].
• Minkowski's question mark function's MathWorld ID is recorded as MinkowskisQuestionMarkFunction^[11].
• Minkowski's question mark function's maintained by WikiProject is recorded as WikiProject Mathematics^[12].
• Minkowski's question mark function's Microsoft Academic ID is recorded as 127178822^[13].
• Minkowski's question mark function's in defining formula is recorded as \operatorname ?^[14].
• Minkowski's question mark function's in defining formula is recorded as a_0+\frac1{a_1+\frac1{a_2+\dotsb}}^[15].

Why It Matters

Minkowski's question mark function draws 168 Wikipedia views per month (function category, ranking #35 of 114).^[2] It has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.^[16] It is known by 9 alternative names across languages and contexts.^[17]