Xaiv Cov Lus Qhia
Martech Zone cov ntawv tag xaiv daim ntawv qhia:
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CRM thiab Cov Ntaub Ntawv Platforms
Xam lossis nug Lub voj voog loj nyob nruab nrab ntawm cov ntsiab lus ntawm Latitude thiab Longitude Siv Haversine Formula (PHP, JavaScript, Java, Python, MySQL, MSSQL Piv txwv)
Lub hli no, kuv tau ua haujlwm hauv PHP thiab MySQL rau GIS. Thaum tshawb fawb lub ntsiab lus, kuv muaj teeb meem nrhiav thaj chaw xam kom pom qhov deb ntawm ob qhov chaw, yog li kuv xav qhia rau lawv ntawm no. Txoj kev yooj yim ntawm kev xam qhov nrug ntawm ob lub ntsiab lus yog siv cov qauv Pythagorean los xam cov hypotenuse ntawm daim duab peb sab (A² + B² = C²). Qhov no yog lub npe hu ua…