Scientific calcuoator v3

bySiddikur Rahman Rayhan (Tamim ) •
0

 

<html>
<head>
<title>This is for my friends!</title>
<!-- BTW PEEPS, I FOUND A COUPLE BUGS AND PROBABLY WILL FIX THEM MID MARCH HAHA BECAUSE IT'S 1ST WEEK OF SCHOOL -->
<style>
body {margin: 0; background-color: #EFDB2F; text-align: center}
p {font-size: 0px}
td {width: 19vw; height: 13.8vh; text-align: center; font-size: 25px; font-weight: bold; color: black; border: 1px solid white}
td:hover {background-color: #CDBA1E}
input {width: 100%; height: 100%; border: none; font-size: 25px; font-weight: bold; padding: 0px 5px}
#shiftBtn {background-color: yellow}
</style>
</head>
<body>
<p id=myPara></p>
<p id=myAns>0</p>
<table>
    <tr>
    <td colspan=5><input id=result readonly></td>
    </tr>
       
    <tr>
    <td onclick="shiftFn(1)" id=shiftBtn>Shift</td>
    <td onclick="trigo('sin')">sin</td>
    <td onclick="trigo('cos')">cos</td>
    <td onclick="trigo('tan')">tan</td>
    <td onclick="input('!')">!</td>
    </tr>
   
    <tr>
    <td onclick="input('^(')">^</td>
    <td onclick="sqrt()">sqrt</td>
    <td onclick="leftParen()">(</td>
    <td onclick="input(')')">)</td>
    <td onclick="log(1)">log</td>
    </tr>
   
    <tr>
    <td onclick="input('7')">7</td>
    <td onclick="input('8')">8</td>
    <td onclick="input('9')">9</td>
    <td onclick="del()">DEL</td>
    <td onclick="ac()">AC</td>
    </tr>
   
    <tr>
    <td onclick="input('4')">4</td>
    <td onclick="input('5')">5</td>
    <td onclick="input('6')">6</td>
    <td onclick="multOrDiv('mult')">&#x00D7;</td>
    <td onclick="multOrDiv('div')">&#x00F7;</td>
    </tr>
   
    <tr>
    <td onclick="input('1')">1</td>
    <td onclick="input('2')">2</td>
    <td onclick="input('3')">3</td>
    <td onclick="input('+')">+</td>
    <td onclick="input('-')">-</td>
    </tr>
   
    <tr>
    <td onclick="input('0')">0</td>
    <td onclick="input('.')">.</td>
    <td onclick="piOrE('pi')">&#x03C0;</td>
    <td onclick="ans()">Ans</td>
    <td onclick="equal()">=</td>
    </tr>
</table>
<script>
    function shiftFn(ken) {
    var shift = document.getElementById("shiftBtn") ;
    var arr = document.getElementsByTagName("td") ;
    if (ken == 1) {
        shift.setAttribute("onclick", "shiftFn(0)") ;
        shift.style.backgroundColor = "orange" ;
        arr[2].innerHTML = "sin<sup>-1</sup>" ;
        arr[2].setAttribute("onclick", "trigo1('sin')") ;
        arr[3].innerHTML = "cos<sup>-1</sup>" ;
        arr[3].setAttribute("onclick", "trigo1('cos')") ;
        arr[4].innerHTML = "tan<sup>-1</sup>" ;
        arr[4].setAttribute("onclick", "trigo1('tan')") ;
        arr[10].innerHTML = "ln" ;
        arr[10].setAttribute("onclick", "log(0)") ;
        arr[28].innerHTML = "\u0065" ;
        arr[28].setAttribute("onclick", "piOrE('e')") ;
    } else {
        shift.setAttribute("onclick", "shiftFn(1)") ;
        shift.style.backgroundColor = "yellow" ;
        arr[2].innerHTML = "sin" ;
        arr[2].setAttribute("onclick", "trigo('sin')") ;
        arr[3].innerHTML = "cos" ;
        arr[3].setAttribute("onclick", "trigo('cos')") ;
        arr[4].innerHTML = "tan" ;
        arr[4].setAttribute("onclick", "trigo('tan')") ;
        arr[10].innerHTML = "log" ;
        arr[10].setAttribute("onclick", "log(1)") ;
        arr[28].innerHTML = "\u03C0" ;
        arr[28].setAttribute("onclick", "piOrE('pi')") ;
    }
}

function input(sun) {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    x.value += sun ;
    y.innerHTML += sun ;
}

function factorial(shirious) {
    if (Number.isInteger(shirious)) {
        if (shirious < 2) return 1 ;
        return shirious * factorial(shirious - 1) ;
    }
}

function sqrt() {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    x.value += "sqrt(" ;
    y.innerHTML += (/[\d)IE]/.test(y.innerHTML.slice(-1))) ?
    " * Math.sqrt(" : "Math.sqrt(" ;
}

function leftParen() {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    x.value += "(" ;
    y.innerHTML += (/[\d)IE]/.test(y.innerHTML.slice(-1))) ?
    " * (" : "(" ;
}

function piOrE(lunar) {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    if (lunar == "pi") {
        x.value += "\u03C0" ;
        y.innerHTML += (/[\d)IE]/.test(y.innerHTML.slice(-1))) ?
        " * Math.PI" : "Math.PI" ;
    } else {
        x.value += "\u0065" ;
        y.innerHTML += (/[\d)IE]/.test(y.innerHTML.slice(-1))) ?
        " * Math.E" : "Math.E" ;
    }
}

function log(jafca) {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    if (jafca == 1) {
        x.value += "log(" ;
        y.innerHTML += (/[\d)IE]/.test(y.innerHTML.slice(-1))) ?
        " * Math.log10(" : "Math.log10(" ;
    } else {
        x.value += "ln(" ;
        y.innerHTML += (/[\d)IE]/.test(y.innerHTML.slice(-1))) ?
        " * Math.log(" : "Math.log(" ;
    }
}

function trigo(hatsyrei) {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    x.value += hatsyrei + "(" ;
    y.innerHTML += (/[\d)IE]/.test(y.innerHTML.slice(-1))) ?
    " * Math." + hatsyrei + "(Math.PI / 180 * " : "Math." + hatsyrei + "(Math.PI / 180 * " ;
}

function trigo1(valentin) {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    x.value += valentin + "\u207B\u00B9("
    y.innerHTML += (/[\d)IE]/.test(y.innerHTML.slice(-1))) ?
    " * 180 / Math.PI * Math.a" + valentin + "(" : "180 / Math.PI * Math.a" + valentin + "(" ;
}

function multOrDiv(edward) {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    if (edward == "mult") {
        x.value += "\u00D7" ;
        y.innerHTML += "*" ;
    } else {
        x.value += "\u00F7" ;
        y.innerHTML += "/"
    }
}

function del() {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    var z = document.getElementById("myAns") ;
    if (x.value.slice(-3) == "Ans") {
        y.innerHTML = (/[\d)IE]/.test(x.value.slice(-4, -3))) ?
        y.innerHTML.slice(0, -(z.innerHTML.length + 3)) : y.innerHTML.slice(0, -(z.innerHTML.length)) ;
        x.value = x.value.slice(0, -3) ;
    } else if (x.value == "Error!") {
        ac() ;
    } else {
        switch (y.innerHTML.slice(-2)) {
            case "* ": // sin cos tan
            y.innerHTML = (/[\d)IE]/.test(x.value.slice(-5, -4))) ?
            y.innerHTML.slice(0, -28) : y.innerHTML.slice(0, -25) ;
            x.value = x.value.slice(0, -4) ;
            break ;
            case "n(":
            case "s(": // asin acos atan
            y.innerHTML = (/[\d)IE]/.test(x.value.slice(-7, -6))) ?
            y.innerHTML.slice(0, -29) : y.innerHTML.slice(0, -26) ;
            x.value = x.value.slice(0, -6) ;
            break ;
            case "0(": // log
            y.innerHTML = (/[\d)IE]/.test(x.value.slice(-5, -4))) ?
            y.innerHTML.slice(0, -14) : y.innerHTML.slice(0, -11) ;
            x.value = x.value.slice(0, -4) ;
            break ;
            case "g(": // ln
            y.innerHTML = (/[\d)IE]/.test(x.value.slice(-4, -3))) ?
            y.innerHTML.slice(0, -12) : y.innerHTML.slice(0, -9) ;
            x.value = x.value.slice(0, -3) ;
            break ;
            case "t(": // sqrt
            y.innerHTML = (/[\d)IE]/.test(x.value.slice(-6, -5))) ?
            y.innerHTML.slice(0, -13) : y.innerHTML.slice(0, -10) ;
            x.value = x.value.slice(0, -5) ;
            break ;
            case "PI": // pi
            y.innerHTML = (/[\d)IE]/.test(x.value.slice(-2, -1))) ?
            y.innerHTML.slice(0, -10) : y.innerHTML.slice(0, -7) ;
            x.value = x.value.slice(0, -1) ;
            break ;
            case ".E": // e
            y.innerHTML = (/[\d)IE]/.test(x.value.slice(-2, -1))) ?
            y.innerHTML.slice(0, -9) : y.innerHTML.slice(0, -6) ;
            x.value = x.value.slice(0, -1) ;
            break ;
            default:
            y.innerHTML = y.innerHTML.slice(0, -1) ;
            x.value = x.value.slice(0, -1) ;
        } ;
    }
}

function ac() {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    x.value = y.innerHTML = "" ;
}

function ans() {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    var z = document.getElementById("myAns") ;
    x.value += "Ans" ;
    y.innerHTML += (/[\d)IE]/.test(y.innerHTML.slice(-1))) ?
    " * " + z.innerHTML : z.innerHTML ;
}

function equal() {
    var x = document.getElementById("result") ;
    var y = document.getElementById("myPara") ;
    var z = document.getElementById("myAns") ;
    for (var i = 0; i < x.value.split("(").length - x.value.split(")").length; i++) {
        y.innerHTML += ")" ;
    }
    if (y.innerHTML != "") {
        x.value = y.innerHTML = z.innerHTML = eval(y.innerHTML
        .replace(/(\d+\.?\d*)\!/g, "factorial($1)")
        .replace(/(\(?[^(]*\)?)\^(\(?.*\)?)/, "Math.pow($1, $2)")
        ) ;
    }
    if (!isFinite(x.value)) x.value = "Error!" ;
}
</script>
</body>
</html>

Siddikur Rahman Rayhan (Tamim )

Siddikur Rahman Rayhan from Bangladesh is a versatile individual with a keen interest in technology, cricket, politics, and Islamic studies. With a strong academic background and proficiency in multiple languages, he excels in blogging, YouTube, web development, Graphix Design and content creation. Skilled in video editing, meme generation, and photography, Rayhan is dedicated to personal and professional growth, seeking connections with like-minded individuals to support his endeavors.

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