<prompt> Fingqa isihloko: CNN Usuku lukaPi luzoba olukhetheke kakhulu kulo nyaka, njengoba u-2015 elula ukugubha okufanekisela u-March 14 isikhathi eside kuze kube u-3.1415. Futhi uma uphawula u-pi ngo-9:26.53 ekuseni noma ebusuku, usuke uhambisana kakhulu nenombolo edumile engaqondakali engapheli. I-pi ilinganiselwa ezindaweni ezingu-31 ngemva kwedesimali, u-3.1415926535897932384626433832795. Amanye amaqiniso ambalwa ngoPi noPi Day: Mayelana ne-pi. Pi isilinganiso sobubanzi besiyingi nobubanzi baso. Akulingani nesilinganiso sanoma yiziphi izinombolo ezimbili eziphelele, ngakho-ke ukulinganisa - 227 - kusetshenziswa ezibalweni eziningi. I - pi ibalulekile ekwakhiweni kwezakhiwo nasekwakhiweni kwezakhiwo futhi yayisetshenziswa njalo izazi zezinkanyezi zakuqala. I - pi yaziwa cishe iminyaka engu - 4 000 edlule, kodwa yaqala ukubizwa ngohlamvu lwesiGreki ngawo - 1700 kuphela. Umsuka woSuku lukaPi. Usuku lukaPi lwaqala eminyakeni engu-27 edlule eSan Franciscos Exploratorium. Isazi sesayensi yezinto eziphilayo uLarry Shaw, esasisebenza eqenjini le-electronics emnyuziyamu, saqala ukugubha u-pi ngo-March 14, 1988, ngokuyinhloko nezisebenzi zasemnyuziyamu. Lo mkhuba uye wakhula ukuze uhlanganise abathandi bezibalo abavela kuzo zonke izizinda zokuphila. Ukugubha. Kulo nyaka, i-Exploratorium ibamba umkhosi wosuku lonke esikhungweni sayo ePier 15, kuhlanganise nePi Procession, ukudla amapayi nomcimbi wokuphonsa inhlama ye-pizza. Usuku lukaPi futhi luwusuku lokuzalwa kuka-Albert Einstein. EPrinceton, eNew Jersey, lapho u-Einstein ahlala khona iminyaka engaphezu kwamashumi amabili, izimpawu zososayensi zigcwele emikhosini yoSuku Luka-Pi, kusukela emaphathini ezinsuku zokuzalwa eNhlanganweni Yomlando yasePrinceton kuya emncintiswaneni wokubheka umuntu ofana no-Einstein. Kanye nokudla amakhekhe, ukuwaphonsa nokwenza amakhekhe e-pizza. Ukuze uthole okwengeziwe nge-pi, vakashela i- U-Elizabeth Landau we-CNN waba nengxenye kulombiko.  <response>: Usuku lwe-Pi lugujwa ngoMashi 14 ukuhlonipha inombolo edumile engenangqondo. I-Exploratorium yaseSan Francisco nePrinceton, eNew Jersey, zihamba zonke. 