O matemático disse que tudo depende de que base numérica você está usando. O engenheiro disse que era 4. O estatístico disse que ele estava 95% convencido de que a resposta estava entre 3,95 e 4,05. O político disse, "Quanto você gostaria que fosse?".
From Comic Sections by Desmond MacHale:
A mathematician, an engineer, a statistician and a politician were all asked what 2 + 2 was. The mathematician said that it all depended on what number base you were using. The engineer said it was 4. The statistician said he was 95% confident that the answer lay between 3.95 and 4.05. The politician said, "What would you like it to be?
![\frac{\sqrt[]{\sqrt[4]{8}+\sqrt[]{\sqrt[]{2}-1}}-\sqrt[]{\sqrt[4]{8}-\sqrt[]{\sqrt[]{2}-1}}}{\sqrt[]{\sqrt[4]{8}-\sqrt[]{\sqrt[]{2}+1}}}](/latexrender/pictures/981987c7bcdf9f8f498ca4605785636a.png "\frac{\sqrt[]{\sqrt[4]{8}+\sqrt[]{\sqrt[]{2}-1}}-\sqrt[]{\sqrt[4]{8}-\sqrt[]{\sqrt[]{2}-1}}}{\sqrt[]{\sqrt[4]{8}-\sqrt[]{\sqrt[]{2}+1}}}")
![\sqrt[]{2}](/latexrender/pictures/f21662d1cabab6e8b273a4b6f1cd663a.png "\sqrt[]{2}")
e elevar ao quadrado os dois lados)