Online Scientific Calculator
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What is Javascript Scientific Calculator?
A JavaScript scientific calculator is a web-based tool that performs basic arithmetic operations, as well as scientific calculations such as trigonometric functions, logarithms, and exponentials.
It is typically built using HTML, CSS, and JavaScript, and can be accessed through a web browser.
JavaScript scientific calculators can be simple or complex, depending on their intended use.
Some calculators may include a user interface with buttons for common functions and operations, while others may require users to input mathematical expressions manually.
These calculators can be useful for students, scientists, engineers, or anyone who needs to perform calculations quickly and accurately. They can also be helpful for learning and practicing math and scientific concepts.
Overall, a JavaScript scientific calculator is a convenient and versatile tool that can assist with a variety of mathematical and scientific calculations.
Scientific Calculator Using Javascript.
Here is an example of a simple scientific calculator using JavaScript:
HTML Code:
php
Copy code
<!DOCTYPE html>
<html>
<head>
<title>Scientific Calculator</title>
<script src="script.js"></script>
</head>
<body>
<h1>Scientific Calculator</h1>
<form>
<input type="text" id="result" readonly>
<br><br>
<input type="button" value="7" onclick="addToInput('7')">
<input type="button" value="8" onclick="addToInput('8')">
<input type="button" value="9" onclick="addToInput('9')">
<input type="button" value="/" onclick="addToInput('/')">
<input type="button" value="sin" onclick="addToInput('sin(')">
<br>
<input type="button" value="4" onclick="addToInput('4')">
<input type="button" value="5" onclick="addToInput('5')">
<input type="button" value="6" onclick="addToInput('6')">
<input type="button" value="*" onclick="addToInput('*')">
<input type="button" value="cos" onclick="addToInput('cos(')">
<br>
<input type="button" value="1" onclick="addToInput('1')">
<input type="button" value="2" onclick="addToInput('2')">
<input type="button" value="3" onclick="addToInput('3')">
<input type="button" value="-" onclick="addToInput('-')">
<input type="button" value="tan" onclick="addToInput('tan(')">
<br>
<input type="button" value="0" onclick="addToInput('0')">
<input type="button" value="." onclick="addToInput('.')">
<input type="button" value="=" onclick="calculate()">
<input type="button" value="+" onclick="addToInput('+')">
<input type="button" value="(" onclick="addToInput('(')">
<input type="button" value=")" onclick="addToInput(')')">
<br><br>
<input type="button" value="Clear" onclick="clearInput()">
</form>
</body>
</html>
JavaScript Code:
javascript
Copy code
let input = "";
function addToInput(value) {
input += value;
document.getElementById("result").value = input;
}
function calculate() {
try {
let result = eval(input);
document.getElementById("result").value = result;
input = result;
} catch (err) {
document.getElementById("result").value = "Invalid input";
input = "";
}
}
function clearInput() {
input = "";
document.getElementById("result").value = "";
}
This calculator supports basic arithmetic operations (+, -, *, /) as well as trigonometric functions (sin, cos, tan). It also has a clear button to reset the input field. Note that the eval() function is used to evaluate the mathematical expression entered by the user. However, using eval() is generally considered unsafe as it can execute arbitrary code. It is recommended to use a more secure parser library instead.
Benefits of Javascript Scientific Calculator
Benefits of Javascript Scientific Calculator
There are several benefits of a JavaScript scientific calculator, including:
Accessibility
A JavaScript scientific calculator can be easily accessed on any device with a web browser, including desktop computers, laptops, tablets, and smartphones.
Convenience
Users don't need to download or install any software to use a JavaScript scientific calculator. They can simply navigate to the web page that hosts the calculator and start using it immediately.
Functionality
A JavaScript scientific calculator can perform a wide range of mathematical calculations, including basic arithmetic operations, trigonometric functions, logarithmic functions, and more.
Customization
JavaScript scientific calculators can be easily customized to meet the specific needs of users or to fit the requirements of a particular project.
Interactivity
JavaScript scientific calculators can provide real-time feedback and instant results as users input data, which can be helpful for learning or troubleshooting.
Integration
JavaScript scientific calculators can be integrated into other web-based applications, such as educational websites or financial tools.
Overall, a JavaScript scientific calculator can be a useful tool for students, professionals, and anyone who needs to perform mathematical calculations quickly and easily.
