{"id":17369643,"url":"https://github.com/jblond/math-functions","last_synced_at":"2026-02-03T12:14:53.708Z","repository":{"id":57674436,"uuid":"483197738","full_name":"JBlond/math-functions","owner":"JBlond","description":"A collection of Math functions written in PHP","archived":false,"fork":false,"pushed_at":"2024-10-16T13:04:11.000Z","size":45,"stargazers_count":3,"open_issues_count":0,"forks_count":0,"subscribers_count":2,"default_branch":"main","last_synced_at":"2025-06-17T20:45:56.347Z","etag":null,"topics":["geodistance","heatindex","math","php","php-library","php-math","temperature","windchill"],"latest_commit_sha":null,"homepage":"","language":"PHP","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/JBlond.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2022-04-19T10:22:55.000Z","updated_at":"2024-10-16T13:04:14.000Z","dependencies_parsed_at":"2024-02-14T13:46:27.023Z","dependency_job_id":"67de5336-ba8f-4bc0-8580-9c659ca7bc5b","html_url":"https://github.com/JBlond/math-functions","commit_stats":{"total_commits":17,"total_committers":1,"mean_commits":17.0,"dds":0.0,"last_synced_commit":"64bae7e911fdda0738cf3adb6ab86b6b180d1e57"},"previous_names":[],"tags_count":8,"template":false,"template_full_name":null,"purl":"pkg:github/JBlond/math-functions","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/JBlond%2Fmath-functions","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/JBlond%2Fmath-functions/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/JBlond%2Fmath-functions/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/JBlond%2Fmath-functions/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/JBlond","download_url":"https://codeload.github.com/JBlond/math-functions/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/JBlond%2Fmath-functions/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":262484424,"owners_count":23318463,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["geodistance","heatindex","math","php","php-library","php-math","temperature","windchill"],"created_at":"2024-10-16T00:05:59.499Z","updated_at":"2026-02-03T12:14:53.701Z","avatar_url":"https://github.com/JBlond.png","language":"PHP","readme":"# Math functions\n\n![https://packagist.org/packages/jblond/math-functions](https://img.shields.io/packagist/v/jblond/math-functions?logo=packagist\u0026label=Packagist)\n![https://packagist.org/packages/jblond/math-functions](https://img.shields.io/packagist/php-v/jblond/math-functions?logo=php\u0026label=PHP)\n![https://packagist.org/packages/jblond/math-functions](https://img.shields.io/packagist/dt/jblond/math-functions?logo=composer\u0026label=Downloads)\n![https://packagist.org/packages/jblond/math-functions](https://img.shields.io/packagist/l/jblond/math-functions?label=License)\n\nInstall via composer\n\n```php\ncomposer require jblond/math-functions\n```\n\n## Circle\n\n- radiusToArea(float $radius)\n- areaToRadius(float $area)\n- areaToCircumference(float $area)\n- circumferenceToArea(float $c)\n- radiusToCircumference(float $radius)\n- circumferenceToRadius(float $c)\n\n## Geo distance\n\nCalculates the distance between two points. [Choose your function](geodistance.md).\n\n- vincenty function\n  \u003cdetails\u003e\u003csummary\u003e- Parameters\u003c/summary\u003e\n    float $latitudeFrom Latitude of start point in [deg decimal]\u003cbr\u003e\n    float $longitudeFrom Longitude of start point in [deg decimal]\u003cbr\u003e\n    float $latitudeTo Latitude of target point in [deg decimal]\u003cbr\u003e\n    float $longitudeTo Longitude of target point in [deg decimal]\u003cbr\u003e\n    float $earthRadius Mean earth radius in [m]\u003cbr\u003e\n    OPTIONAL float|int Distance between points in [m] (same as earthRadius) default: 6371000 meters\n  \u003c/details\u003e\n- haversine function\n  \u003cdetails\u003e\u003csummary\u003e- Parameters\u003c/summary\u003e\n    float $latitudeFrom Latitude of start point in [deg decimal]\u003cbr\u003e\n    float $longitudeFrom Longitude of start point in [deg decimal]\u003cbr\u003e\n    float $latitudeTo Latitude of target point in [deg decimal]\u003cbr\u003e\n    float $longitudeTo Longitude of target point in [deg decimal]\u003cbr\u003e\n  \u003c/details\u003e\n- greatCircle\n  \u003cdetails\u003e\u003csummary\u003e- Parameters\u003c/summary\u003e\n    float $latitudeFrom Latitude of start point in [deg decimal]\u003cbr\u003e\n    float $longitudeFrom Longitude of start point in [deg decimal]\u003cbr\u003e\n    float $latitudeTo Latitude of target point in [deg decimal]\u003cbr\u003e\n    - float $longitudeTo Longitude of target point in [deg decimal]\u003cbr\u003e\n  \u003c/details\u003e\n- equirectangularApproximation\n  \u003cdetails\u003e\u003csummary\u003e- Parameters\u003c/summary\u003e\n    float $latitudeFrom Latitude of start point in [deg decimal]\u003cbr\u003e\n    float $longitudeFrom Longitude of start point in [deg decimal]\u003cbr\u003e\n    float $latitudeTo Latitude of target point in [deg decimal]\u003cbr\u003e\n    float $longitudeTo Longitude of target point in [deg decimal]\u003cbr\u003e\n  \u003c/details\u003e\n- cosineLaw\n  \u003cdetails\u003e\u003csummary\u003e- Parameters\u003c/summary\u003e\n    float $latitudeFrom Latitude of start point in [deg decimal]\u003cbr\u003e\n    float $longitudeFrom Longitude of start point in [deg decimal]\u003cbr\u003e\n    float $latitudeTo Latitude of target point in [deg decimal]\u003cbr\u003e\n    float $longitudeTo Longitude of target point in [deg decimal]\u003cbr\u003e\n  \u003c/details\u003e\n\n## Fibonacci\n\n- Fibonacci\n  - fibonacciRecursion(int $number)\n  - fibonacciWithBinetFormula(int $number)\n\n## Air\n\n- AbsoluteHumidity(float $relativeHumidity, float $temperature, bool  $temperatureInFahrenheit = false, bool  $isRelativeHumidityInPercent = true)\n- density(float $temperatureInCelsius, float $airPressure, float $relativeHumidityInPercent)\n- dewPoint(float $temperatureInCelsius, float $humidityInPercent)\n- heatIndex(float $temperatureInCelsius, float $humidityInPercent)\n- heatIndexWarning(int $heatIndex)\n- wetBulbTemperature(float $temperatureInCelsius, float $humidityInPercent)\n- windchill(float $temperatureInCelsius, float $windSpeedInKmPerHour)\n- iso7730(float $temperature, float $radiantTemperature, float $velocity, float $relativeHumidity, float $metabolicRate, float $clothingInsulation )\n- pmvToWords(float $pmv, string $lang = 'en') See also [ISO-7730](ISO-7730.md)\n\n## Psychrometric Chart\n\n- saturationVaporPressurePa(float $T)\n- humidityRatioFromRH(float $T, float $RH, float $pPa = 101325.0)\n- enthalpy(float $T, float $w)\n- rhIsoline(float $RH, float $pPa = 101325.0, float $Tmin = 0.0, float $Tmax = 40.0, float $dT = 1.0)\n- enthalpyLine(float $hTarget, float $Tmin = 0.0, float $Tmax = 40.0, float $dT = 1.0)\n- stateLineAtT(float $T, float $pPa = 101325.0)\n\n## PsychrometricChartRenderer\n\n- __construct(int $width = 1000, int $height = 700)\n- setRanges(float $tMin, float $tMax, float $wMin, float $wMax)\n- setPressurePa(float $p)\n- drawAxesAndGrid(float $tStep = 5.0, float $wStep = 0.005)\n- drawRhIsolines(array $rhValues = [10,20,30,40,50,60,70,80,90,100], float $tStep = 0.5)\n- drawEnthalpyLines(array $hValues = [20, 30, 40, 50, 60, 70, 80], float $tStep = 0.5)\n- plotPointFromTRH(float $T, float $RH, int $radius = 8, string $label = '')\n- savePng(string $path)\n\n## Sphere\n\n- areaOfADisc(float $radius)\n- circumference(float $radius)\n- diameter(float $radius)\n- surfaceArea(float $radius)\n- volume(float $radius)\n- heading(array $from, array $to)\n\n## Temperature\n\n- fahrenheitToCelsius(float $temperature)\n- celsiusToFahrenheit(float $temperature)\n- fahrenheitToKelvin(float $temperature)\n- celsiusToKelvin(float $temperature)\n- kelvinToCelsius(float $temperature)\n\n## ISO‑52016 (Building Energy / Moisture Module)\n\n- vaporPressureDeficitPa(float $T, float $RH)\n- degreeOfSaturation(float $T, float $RH, float $pressurePa = 101325.0)\n- specificHumidity(float $T, float $RH, float $pressurePa = 101325.0)\n- latentMoistureLoad(float $airFlowM3s, float $T, float $RH, float $targetRH, float $pressurePa = 101325.0)\n- operativeTemperature(float $airTemp, float $radiantTemp, float $airVelocity = 0.1)\n- moistureBalanceStep(float $currentW, float $moistureSourceKgPerS, float $airMassFlowKgPerS, float $targetW, float $dtSeconds)\n\n## MouldIndex\n\n- step(float $M, float $T, float $RH, float $dtHours, string $material = 'medium')\n- accumulat(earray $samples, float $dtHours = 1.0, string $material = 'medium')\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjblond%2Fmath-functions","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjblond%2Fmath-functions","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjblond%2Fmath-functions/lists"}