Noratrieb/TriangleCalculator
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more angle and side options

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nora 2020-12-01 18:34:00 +01:00
parent defbacb8c7
commit 1977b1e43d
4 changed files with 19 additions and 7 deletions
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src/main/kotlin/main.kt
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@ -1,9 +1,11 @@
import java.lang.IllegalArgumentException import java.lang.IllegalArgumentException
import kotlin.contracts.contract
import kotlin.math.* import kotlin.math.*
fun main() { fun main() {
val triangle = Triangle(7.7, 4.3, 8.7) val triangle = Triangle(4.0, 3.0, 5.0)
println("a: ${Triangle("alpha", 54.13, "a", 4.0)}")
println("b: ${Triangle("alpha", 54.13, "b", 3.0)}")
println("c: ${Triangle("alpha", 54.13, "c", 5.0)}")
println(triangle) println(triangle)
} }
@ -21,18 +23,25 @@ class Triangle() {
} }
constructor(angleName: String, angle: Double, sideName: String, side: Double) : this() { constructor(angleName: String, angleD: Double, sideName: String, side: Double) : this() {
val angle = angleD.toRadians() //thanks kotlin
if (angleName == "alpha") { if (angleName == "alpha") {
alpha = Angle(angleD, "alpha")
when(sideName){ when(sideName){
"a" -> { "a" -> {
c = Side(side / sin(angle), "c") a = Side(side, "a");
c = Side(a / sin(angle), "c")
b = Side(c * cos(angle), "b") b = Side(c * cos(angle), "b")
} }
"b" -> { "b" -> {
//c = Side b = Side(side, "b")
c = Side(side / cos(angle), "c")
a = Side(c * cos(angle), "c")
TODO("fix error on side c (also wrong name")
} }
"c" -> { "c" -> {
//cos c = Side(side, "c")
a = Side(c * sin(angle), "a")
} }
} }
} else if (angleName == "beta") { } else if (angleName == "beta") {
@ -67,6 +76,8 @@ class Triangle() {
} }
private fun Double.toDegree() = this * 180 / PI private fun Double.toDegree() = this * 180 / PI
private fun Double.toRadians() = this * PI / 180
override fun toString(): String { override fun toString(): String {
return "Seiten: $a, $b, $c Winkel: $alpha $beta $gamma" return "Seiten: $a, $b, $c Winkel: $alpha $beta $gamma"
@ -79,9 +90,10 @@ class Side(length: Double, name: String) {
val name = name val name = name
operator fun times(other: Double) = this.length * other operator fun times(other: Double) = this.length * other
operator fun div(other: Double) = this.length / other
override fun toString(): String { override fun toString(): String {
return "$name = $length" return "$name = ${"%.2f".format(length)}"
} }
} }