Scientific Calculator Online

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scientific calculator online
Sine (sin)Cosine (cos)Tangent (tan)Square Root (√)Logarithm (log10)Natural Log (ln)Power (x^y)Factorial (x!)
DegreesRadians
Calculation Result:



function calculateResult(){var op=document.getElementById('given_data').value;var x=parseFloat(document.getElementById('input1').value);var y=parseFloat(document.getElementById('input2').value);var mode=document.getElementById('input3').value;var res=0;var label="";if(isNaN(x)){alert('Please enter a valid number for Value X');return;}if(mode==='deg'&&(op==='sin'||op==='cos'||op==='tan')){var rad=x*(Math.PI/180);}else{var rad=x;}switch(op){case 'sin':res=Math.sin(rad);label="sin("+x+(mode==='deg'?'°':")+") = ";break;case 'cos':res=Math.cos(rad);label="cos("+x+(mode==='deg'?'°':")+") = ";break;case 'tan':res=Math.tan(rad);label="tan("+x+(mode==='deg'?'°':")+") = ";break;case 'sqrt':if(x<0){alert('Cannot take square root of negative number');return;}res=Math.sqrt(x);label="√"+x+" = ";break;case 'log':if(x<=0){alert('Logarithm undefined for zero or negative');return;}res=Math.log10(x);label="log10("+x+") = ";break;case 'ln':if(x<=0){alert('Natural log undefined for zero or negative');return;}res=Math.log(x);label="ln("+x+") = ";break;case 'pow':if(isNaN(y)){alert('Please enter Value Y for power');return;}res=Math.pow(x,y);label=x+"^"+y+" = ";break;case 'fact':if(x<0||!Number.isInteger(x)){alert('Factorial requires a non-negative integer');return;}res=1;for(var i=2;i<=x;i++)res*=i;label=x+"! = ";break;}document.getElementById('resultValue').innerHTML=label+res.toLocaleString(undefined,{maximumFractionDigits:10});document.getElementById('answer').style.display='block';}

Calculator Use

This scientific calculator online is a comprehensive tool designed to handle complex mathematical operations that go beyond basic arithmetic. Whether you are a student solving trigonometry problems, an engineer calculating structural loads, or a scientist analyzing data, this tool provides precise results for advanced functions.

Unlike a standard calculator, our scientific version allows you to compute exponents, roots, logarithms, and trigonometric ratios with ease. Simply select your desired function, enter the values, and the calculator provides an instant solution.

Function Selection
Choose from sin, cos, tan, square root, log, natural log, power, or factorial.
Value X
The primary number for your calculation (e.g., the angle for sine or the base for an exponent).
Value Y
Used specifically for power calculations (x raised to the power of y).
Angle Unit
Toggle between Degrees and Radians for trigonometric calculations.

How It Works

The scientific calculator online utilizes standard mathematical libraries to process your inputs. For trigonometric functions, the tool handles the conversion between degrees and radians automatically based on your selection. The core logic follows these mathematical principles:

Radians = Degrees × (π / 180)

  • Trigonometry: Uses the unit circle relationships to find ratios for Sine, Cosine, and Tangent.
  • Logarithms: Calculates the power to which a base (10 for log, e for ln) must be raised to produce a given number.
  • Factorials: Multiplies a series of descending natural numbers (n!).
  • Powers: Multiplies the base 'x' by itself 'y' number of times.

Calculation Example

Example: Calculating the sine of a 30-degree angle using the scientific calculator online.

Step-by-step solution:

  1. Select Sine (sin) from the function dropdown.
  2. Enter 30 in the "Value X" field.
  3. Set the Angle Unit to Degrees.
  4. The calculator converts 30° to Radians: 30 * (π / 180) = 0.5236 rad.
  5. Calculate: sin(0.5236) = 0.5.
  6. Result = 0.5

Common Questions

What is the difference between Degrees and Radians?

Degrees are a way of measuring angles where a full circle is 360 units. Radians are the standard unit of angular measure used in mathematics, where a full circle is 2π (approximately 6.28) units. Most scientific calculations in calculus use radians, while geometry often uses degrees.

Can I calculate negative square roots?

In the realm of real numbers, the square root of a negative number is undefined. While complex numbers use "i" to represent the square root of -1, this online scientific calculator focuses on real number results and will return an error for negative square root inputs.

What is 'ln' versus 'log'?

'Log' typically refers to the common logarithm with a base of 10. 'Ln' stands for natural logarithm, which has a base of 'e' (Euler's number, approximately 2.718). 'Ln' is frequently used in physics and biological growth modeling.

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