update

2022-04-11 09:00:52 +02:00
parent c97d7c42c9
commit f4ae53338c
11 changed files with 236 additions and 35 deletions
--- a/javascript/masodfoku/index.html
+++ b/javascript/masodfoku/index.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="UTF-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1">
+        <title>Masodfoku</title>
+    </head>
+    <body>
+        a<input type="number" id="a">
+        b<input type="number" id="b">
+        c<input type="number" id="c">
+        <button id="submit" onclick="input()">Submit</button>
+        <br>
+        <div id="ertekek"></div>
+        <div id="hiba"></div>
+        <div id="eredmeny1"></div>
+        <div id="eredmeny2"></div>
+        <script src="script.js"></script>
+    </body>
+</html>
--- a/javascript/masodfoku/script.js
+++ b/javascript/masodfoku/script.js
@@ -0,0 +1,58 @@
+let a,b,c = 0;
+function input(){
+    a = document.getElementById("a").value;
+    b = document.getElementById("b").value;
+    c = document.getElementById("c").value;
+
+    document.getElementById("ertekek").innerText = "a: " + a + " b: " + b + " c: " + c;
+
+    szamolas();
+}
+
+function diszkriminans(){
+    let diszk = (b*b) - (4 * a * c);
+    if(diszk > 0){
+        return 2;
+    }else if(diszk == 0){
+        return 1;
+    }else{
+        return 0;
+    }
+}
+
+function szamolas(){
+    let diszk = diszkriminans();
+    console.log("diszk: " + diszk);
+    if(diszk == 0){
+        document.getElementById("hiba").innerText = "Nincs eredmeny"; 
+        return "Nincs eredmeny";
+
+    }
+    if(a < 1){
+        document.getElementById("hiba").innerText = "Elsofoku egyenlet";
+        return "Elsofoku egyenlet";
+    }
+
+    let gyok1 = -b + Math.sqrt((b*b) - (4 *a*c));
+    gyok1 = gyok1 / (2*a);
+    document.getElementById("eredmeny1").innerText = "Gyok1: " + gyok1;
+    let gyok2 = -b - Math.sqrt((b*b) - (4 *a*c));
+    gyok2 = gyok2 / (2*a);
+    document.getElementById("eredmeny2").innerText = "Gyok2: " + gyok2;
+
+    console.log("Gyok1: " + gyok1);
+    console.log("Gyok2: " + gyok2);
+
+    if(diszk == 1){
+        let ell1 = a*gyok1*gyok1 + b*gyok1 + c;
+        let ell2 = a*gyok2*gyok2 + b*gyok2 + c;
+        console.log("ELL1: " + ell1);
+        console.log("ell2: " + ell2);
+        if(ell1 == 0){
+            document.getElementById("hiba").innerText = "Gyök1 jó megoldás";
+        }
+        if(ell2 == 0) {
+            document.getElementById("hiba").innerText = "Gyök2 jó megoldás";
+        }
+    }
+}