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About the manual Предисловие Basic concepts all PEAR users should understand Installation (Pyrus)Installation (PEAR)Command line installer (PEAR)Dependency Tracking (Meta Packages) with PEAR

Using Pyrus, the PEAR Installer for PHP 5.3+

About Pyrus Commands available in Pyrus Pyrus configuration Differences from the PEAR Installer Creating plugins for Pyrus Developer Tools for Pyrus Using Pyrus in your programs: Pyrus's Public API

PEAR Developer Guide

About PEAR and PEAR2 Becoming a PEAR developer: how to get involved PEAR Developer Guide Coding Standards PEAR Installer: Core components (Installer API, error handling)PEAR Installer: customizing the installer itself RFCs

Channels: distributing your packages

channel.xml, REST, XML-RPC Creating your own channel with Pyrus and PEAR2_SimpleChannelServer

Services_Weather_Common::calculateDewPoint

Вернуться к: Services_Weather

Services_Weather_Common::calculateDewPoint

Services_Weather_Common::calculateDewPoint() – Calculate dewpoint from temperature and humidity This is only an approximation, there is no exact formula, this one here is called Magnus-Formula

Synopsis

require_once '/Weather/Common.php';

float Services_Weather_Common::calculateDewPoint ( float $temperature , float $humidity )

Temperature has to be entered in deg C!

Parameter

float $temperature

float $humidity

Throws

No exceptions thrown.

See

see http://www.faqs.org/faqs/meteorology/temp-dewpoint/

Note

This function can not be called statically.

Вернуться к: Services_Weather