McAdams, David E.: - 30 sano ka dib horumarinta software, David McAdams waxa uu raadinayay wax cusub oo la sameeyo. Wuxuu ka shaqeeyay sida dadku u baraan xisaabta. Shaqadiisa koorsada ee Jaamacadda Utah Valley, wuxuu ku bartay sida helitaanka erey-bixintu muhiim ugu tahay dhammaan waxbarashada, iyo gaar ahaan xisaabta. Xisaabta muddo dheer ayaa loo arkaa inay leedahay luqad u gaar ah, oo leh hab-raac iyo astaamo u gaar ah. Helitaanka luqaddan ayaa la ogaaday inay caqabad ku tahay arday badan. Kadib markii uu dhamaystay tababarkiisii shaqo, Mr. McAdams waxa uu dhameeyay ururinta ereyada xisaabta ee qaamuus dhamaystiran, oo u qoran ardayda dugsiga dhexe iyo dugsiga sare. "All Math Words Dictionary" (Dhammaan Qaamuuska Ereyada Xisaabta) waa gebogebada shaqo ururinta, kala saarista iyo sharraxidda dhammaan kelmadaha uu ardaygu kala kulmi karo waxbarashadooda aljabra, joomatari, iyo kalkuluuska. Buugani waxa uu ka kooban yahay in ka badan 3000; in ka badan 140 tilmaamood oo xisaab ah oo la qeexay; in ka badan 790 sawir; hagaha ku dhawaaqida Xarfaha Codka Codka Caalamiga ah (IPA); iyo in ka badan 1400 qaacido iyo isla'eg. Isagoo ka shaqaynaya qaamuuska, inta u dhaxaysa la ciyaarida caruurtiisa, Mr. McAdams waxa uu bilaabay horumarinta fikrado kale oo xagga xisaabta ah. Natiijooyinku waa "Numbers" (Tirada), "What is Bigger Than Anything (Infinity)" (Maxaa ka weyn Wax kasta (Infinity)), "Swing Sets (Set Theory)" (Aragti Habayn), iyo "Learning With Money Activity Kit" (Ku Barashada Lacagta Ciyaarta). McAdams waxa uu ka nastay agabkii wax lagu bari jiray xisaabta, isaga oo u dhaqaaqay fagaaraha xiisaha xisaabeed ee saafiga ah. Tani waxay keenaysaa laba qaybood oo ah "Jajabka aan Jeclahay". Markii uu u akhriyay buug ku saabsan magacyada midabka wiilka uu awoowe u yahay ee Sawyer, waxa uu ka fikiray sida caajiska ah ee buugaagta magacyada midabka loogu talagalay dadka waaweyn. "Maxaa ku jira dabiiciga," ayuu muuse, "ku filan yahay midabada aasaasiga ah iyo kuwa sare si loo baro magacyada midabka carruurta?" Jawaabtiisii ugu horreysay waxay noqotay rah ama baqbaqaaq. Waxa uu abuuray "Midabada ee Baqbaqaaq", "Midabada ubaxyada", iyo "Space Colors" (Midabada Cosmos ) Ku soo noqoshada xisaabta, Mr. McAdams waxa uu sameeyay buug si uu carruurta uga caawiyo in ay bartaan qaababka, oo loo yaqaan "Shapes". Waxa uu xasuustay sida, yaraantiisii, uu u helay dhawr daabac oo shabag-joomatariya ah oo uu aad ula dhacay sida ay isugu laalaabeen walxo kakan oo saddex-cabbir ah. Waxa uu diyaariyey "Geometric Nets Project Book", ka dibna "Geometric Nets Mega Project Book" oo leh shabagyo joomatari badan si loo gooyo oo la isu geeyo. Maxaa loo heli karaa qofka xiiseeya xisaabta ee haysta wax walba? Mr McAdams waxa uu abuuray buugaagta "The First Million Digits of Pi", "The First Million Digits of e", "The Square Root of Two to One Million Digits", "The First Thousand Prime Numbers" Dhalinyaro badan oo xisaabta bartay ayaa la dhacsan sida xisaabtu u shaqeyso. Mr. McAdams waxa uu qoray "One Penny, Two" si uu ugu muujiyo sheeko ku saabsan sida xawliga ah ee awoodaha laba ay u kordheen soo noqnoqoshada kasta. Jerry waxaa la siiyay sanduuq sixir ah. Haddii aad ku riddo dinaar, penniesku labanlaaban yihiin maalin kasta haddii aan midna laga soo bixin. Jerry wuxuu go'aansaday inuu rabo baabuur isboorti oo la bedeli karo oo cagaar ah. Raac tijaabooyinka Jerry sida uu u dadaalayo yoolkiisa.