Addition (+)
Subtraction (-)
Multiplication (*)
Division (/)
Power (^)
Result: —
Understanding the Function X Calculator
The "Function X Calculator" is a versatile tool designed to perform basic mathematical operations based on user-defined inputs. It allows you to input two numerical values, often referred to as variables (here, 'A' and 'B'), and select a mathematical operation to apply between them. This calculator simplifies the process of evaluating simple functions of the form f(A, B) = A op B, where 'op' represents the chosen operation.
How it Works
The calculator takes two numerical inputs, A and B. You then choose one of the following operations:
Addition (+): Computes A + B.
Subtraction (-): Computes A - B.
Multiplication (*): Computes A * B.
Division (/): Computes A / B. Note that division by zero is mathematically undefined and will result in an error message.
Power (^): Computes A raised to the power of B (AB).
Mathematical Formulae
The core logic of this calculator implements the following mathematical operations:
Addition: Result = A + B
Subtraction: Result = A - B
Multiplication: Result = A * B
Division: Result = A / B (if B ≠ 0)
Power: Result = AB (equivalent to Math.pow(A, B) in JavaScript)
Use Cases
While simple, this calculator has numerous applications:
Basic Arithmetic Checks: Quickly verify calculations you're doing by hand or in your head.
Educational Tool: Helps students grasp fundamental mathematical operations and their results.
Quick Computations: Useful for anyone needing fast results for simple mathematical expressions in various contexts, from programming snippets to everyday problem-solving.
Testing Hypotheses: Explore the relationship between two numbers under different operations.
By providing a clear interface and accurate calculations, the Function X Calculator aims to be a reliable tool for your basic mathematical needs.
function calculateFunctionX() {
var inputA = parseFloat(document.getElementById("input_a").value);
var inputB = parseFloat(document.getElementById("input_b").value);
var operation = document.getElementById("operation").value;
var resultDisplay = document.getElementById("result").querySelector("span");
var result = "–";
if (isNaN(inputA) || isNaN(inputB)) {
result = "Error: Please enter valid numbers for both inputs.";
} else {
switch (operation) {
case "add":
result = inputA + inputB;
break;
case "subtract":
result = inputA – inputB;
break;
case "multiply":
result = inputA * inputB;
break;
case "divide":
if (inputB === 0) {
result = "Error: Division by zero is not allowed.";
} else {
result = inputA / inputB;
}
break;
case "power":
result = Math.pow(inputA, inputB);
break;
default:
result = "Error: Unknown operation selected.";
}
}
if (typeof result === 'number' && !isNaN(result)) {
resultDisplay.textContent = result.toLocaleString(); // Format numbers for readability
} else {
resultDisplay.textContent = result; // Display error messages directly
}
}