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Data update

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Ingy döt Net 2025-02-27 18:35:13 -05:00
parent 8e4e15fa56
commit 72eb4943cb
1853 changed files with 35514 additions and 9441 deletions
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7
Task/Horizontal-sundial-calculations/JavaScript/horizontal-sundial-calculations-1.js Normal file
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<html>
<head>
</head>
<body>
<script src="sundial.js"></script>
</body>
</html>

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Task/Horizontal-sundial-calculations/JavaScript/horizontal-sundial-calculations-2.js Normal file
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// Horizontal sundial calculations
function deg2rad(d) {
return d * Math.PI / 180;
}
function rad2deg(r) {
return r / Math.PI * 180;
}
document.write("<span style=\"font-family:Lucida Console\">");
lat = prompt("Enter latitude");
document.write("<p>Latitude: ", lat);
lng = prompt("Enter longitude");
document.write("<br />Longitude: ", lng);
ref = prompt("Enter legal meridian");
document.write("<br />Legal meridian: ", ref);
document.write("</p>");
sLat = Math.sin(deg2rad(lat));
document.write("<p>Sine of latitude: ", sLat.toFixed(5));
document.write("<br />Diff longitude: ", (lng - ref).toFixed(5));
document.write("</p>");
document.write("<table>");
document.write("<colgroup><col style=\"background-color: #EEEEEE\">");
document.write("<col>");
document.write("<col style=\"background-color: #EEEEEE\">");
document.write("</colgroup>");
document.write("<tr><th>Time</th><th>Sun hour angle</th>",
"<th>Dial hour line angle</th></tr>");
for (hour = -6; hour <= 6; hour++) {
hourAngle = 15 * hour - (lng - ref);
hourLineAngle = rad2deg(Math.atan(sLat * Math.tan(deg2rad(hourAngle))));
document.write("<tr style=\"text-align:right\">");
document.write("<td>", (hour + 12).toFixed(), ":00</td>");
document.write("<td style=\"padding-right:20px\">", hourAngle.toFixed(5),
"</td>");
document.write("<td style=\"padding-right:20px\">", hourLineAngle.toFixed(5),
"</td></tr>");
}
document.write("</table>");
document.write("</span>");