Uhlobo ukuguqulwa. Round futhi TRUNC umsebenzi in the "Pascal"

Ukusebenza "Pascal" eziguquguqukayo ezahlukene, ngokuvamile kufanele ubhekane neqiniso lokuthi lapho ehlanganisa iphutha uhlelo kwenzeka, okubonisa elingalungile ukuguqulwa amanani. Ngokwesibonelo, ngeke ukwazi ukwabela elibanzi Uhlobo lwenombolo ukubaluleka 5.9, njengoba lokhu kuyoholela yephutha yesakhi. Kulokhu-ke kubalulekile ukuba ukhulume ukusetshenziswa imisebenzi TRUNC futhi Round ku "Pascal", lapho ufuna ukuguqula izinhlobo agumenti bese uqhubeke ukwenza imisebenzi ethile kubo.

ulwazi olujwayelekile mayelana nezinhlobo ukuguqulwa

Uhlobo ukuguqulwa (ukuncishiswa value) - inqubo zokuguqula amagugu elilodwa uhlobo idatha kwenye. Hlukanisa ekubunjweni ocacile ngokuphelele. Isethi yokuqala ngqo ngunjiniyela usebenzisa noma iyiphi kwaqanjwa ulimi, noma ngokusebenzisa imisebenzi, kanti owesibili wenziwa ngokuzimela yesakhi noma ongalichaza iziqondiso ikhodi, amenyezelwa esezingeni ngolimi oluthile izinhlelo.

Uhlobo yokuguqula Pascal

Esikhathini "Pascal" ulimi lokwakha izinhlelo ingasetshenziswa njengenhlangano obala noma ngokuphelele uhlobo lokuguqula.

Nge okubeka obala izinhlobo actuation "Pascal" asetshenziswa izingcingo ukuze ekhethekile ukuguqulwa imisebenzi kabani agumenti basonta uhlobo olufanayo, futhi ukubaluleka - uhlobo oluhlukile kakhulu idatha. yilezo TRUNC umsebenzi in the "Pascal" futhi umsebenzi Round, okuzoxoxwa kabanzi ngezansi.

uhlobo olusobala ngalolu limi kungenzeka kuphela lokhu ikakhulukazi ezimweni lapho izinkulumo, okuyinto aqukethe inamba bese real eziguquguqukayo zingezwa ngokuzenzakalela iguqulwe ngowokuqala uhlobo lwesibili.

Ingxoxo elandelayo igcizelela, kanjani ungakwazi nokuqalisa ukuletha ezinombolo izinhlobo idatha.

TRUNC

Esakhelwe ngaphakathi imisebenzi zezibalo. TRUNC e "Pascal" uyazilahla zonke ingxenye ayingxenye ye-agumenti, okwamenza tselochiselnomu engqondweni. Ngokwesibonelo, ngokubiza TRUNC agumenti (1.73) ingatholakala umphumela 1.

-syntax : izici: TRUNC (X: real): Longint.

round

Esakhelwe ngaphakathi imisebenzi zezibalo. umsebenzi Round uphetha off agumenti yimithetho izibalo ukuze kunombolo ephelele eseduze. Ngokwesibonelo, ebiza Round (1.73) ekupheleni Ihambe 2, futhi Round agumenti (1.11) ukunikeza 1.

функции : -syntax yaso: round (X: real): Longint.

Kuyaphawuleka ukuthi umphumela kokwenza imisebenzi TRUNC futhi Round ku "Pascal" umuntu ulinganiselwe. Ukwenza ngeke aphumelele uma lo mphumela Lenza okungaphezu kwalokho lo Longint Uhlobo lwenani.

Kusobala ukuthi i-syntax kokubili imisebenzi esakhelwe ulula futhi ingasetshenziswa ku Round futhi TRUNC "Pascal" ngoba okubeka obala uhlobo lokuguqulwa ngaphandle nazinkinga futhi izimbangela ahlanganise amaphutha mayelana ukuhlukumeza izinhlobo.