Cal11 calculator

Free Online Scientific Calculator with Negative Sign

Reviewed by Calculator Editorial Team

This free online scientific calculator supports negative numbers and standard scientific functions. It's perfect for students, engineers, and anyone needing precise calculations with negative values.

How to Use This Calculator

Using our scientific calculator with negative sign support is simple:

  1. Enter your first number (can be negative)
  2. Select the operation (+, -, ×, ÷, ^, √, etc.)
  3. Enter your second number (can be negative)
  4. Click "Calculate" to see the result
  5. Use the "Reset" button to clear all fields

The calculator handles negative numbers correctly in all operations. For example, entering -5 + (-3) will correctly show -8 as the result.

Formula Used

The calculator performs basic arithmetic operations with support for negative numbers:

  • Addition: a + b
  • Subtraction: a - b
  • Multiplication: a × b
  • Division: a ÷ b
  • Exponentiation: a^b
  • Square root: √a

All operations follow standard mathematical rules for negative numbers. For example, multiplying two negative numbers gives a positive result: (-2) × (-3) = 6.

Worked Examples

Example 1: Basic Addition with Negatives

Calculate: -4 + (-7)

Result: -11

Explanation: Adding two negative numbers combines their absolute values with a negative sign.

Example 2: Subtraction with Negatives

Calculate: -5 - (-3)

Result: -2

Explanation: Subtracting a negative is the same as adding its absolute value.

Example 3: Multiplication with Negatives

Calculate: (-2) × (-4)

Result: 8

Explanation: Multiplying two negative numbers yields a positive result.

Frequently Asked Questions

Can this calculator handle complex numbers?

No, this is a basic scientific calculator that only handles real numbers with negative values. For complex number calculations, you would need a more advanced calculator.

How does the calculator handle division by zero?

The calculator will display an error message when you attempt to divide by zero, as this operation is mathematically undefined.

Can I use this calculator on my mobile device?

Yes, this calculator is fully responsive and works on all devices, including smartphones and tablets.