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Horizontal sundial calculations: Difference between revisions
Scala contribution added.
(→{{header|Java}}: Added missing variable declaration for 'hraRad'.) |
(Scala contribution added.) |
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Line 2,504:
end;</lang>
=={{header|Scala}}==
<lang Scala>import java.util.Scanner
import scala.math.{atan2, cos, sin, toDegrees, toRadians}
object Sundial extends App {
var lat, slat,lng, ref = .0
val sc = new Scanner(System.in)
lat = sc.nextDouble
print("Enter longitude: ")
lng = sc.nextDouble
print("Enter legal meridian: ")
ref = sc.nextDouble
println()
slat = Math.sin(Math.toRadians(lat))
println(f"sine of latitude: $slat%.3f")
println(f"diff longitude: ${lng - ref}%.3f\n")
println("Hour, sun hour angle, dial hour line angle from 06h00 to 18h00")
for (h <- -6 to 6) {
val hra = 15.0 * h - lng + ref
val hraRad = toRadians(hra)
val hla = toDegrees(atan2(Math.sin(hraRad) * sin(Math.toRadians(lat)), cos(hraRad)))
println(f"HR= $h%3d;\tHRA=$hra%7.3f;\tHLA= $hla%7.3f")
}
}</lang>
=={{header|Seed7}}==
<lang seed7>$ include "seed7_05.s7i";
Line 2,543 ⟶ 2,571:
end func;</lang>
{{out}}
<pre>Enter latitude: -4.95
▲Enter latitude: -4.95
Enter longitude: -150.5
Enter legal meridian: -150
Line 2,564 ⟶ 2,591:
HR= 4; HRA= 60.500; HLA= -8.671
HR= 5; HRA= 75.500; HLA= -18.451
HR= 6; HRA= 90.500; HLA= 84.225</pre>
=={{header|Sidef}}==
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