ln

The Natural Log (ln) calculator returns the natural log of the input value.

INSTRUCTIONS: Enter the following:

• (x) Input Number

Natural Log - ln(x): The calculator returns the log as a real number

The Math / Science

The natural logarithm of a number is its logarithm to the base e (mathematical constant e).  e is an irrational and transcendental number approximately equal to 2.71828182845904523536028747135266249775724703699995.

`ln(x) = log_e(x)`

Note: ln(e) = 1.0

Additional Resources:

EE Calculator (CLICK HERE)

Scientific Calculator Functions

Basic Math Functions:

• x^-1: This is the mathematical inverse or reciprocal of x, which is also 1/x
• x! : This is the factorial of x
• x²: This is the square of x
• x³: This is the cube of x
• x^y: This is x to the y^th power
• 10^x: This is ten to the x^th power.
• `sqrt(x)`: This is the square root of x
• `root(3)(x)`: This is the cube root of x
• `root(y)(x)`: This is the y^th root of x
• Rand: This returns a random number between 0 and 1.
• log(x): This the base 10 log of x
• ln(x) : This provides the natural log of x
• MOD: This provides the integer remainder of x/y.
• GCD: This is the greatest common divisor of two numbers

Math Constants:

• e - this is the base of the natural log
• π - This is the base of Euclidean geometry

Trigonometry Functions:

• sin(θ) : This is the sine function of an angle.
• cos(θ): This is the cosine function of an angle.
• tan(θ): This is the tangent function of an angle.
• sin^-1(x): This is the angle from the inverse of a sine.
• cos^-1(x): This is the angle from the inverse of a cosine.
• tan^-1(x): This is the angle from the inverse of a tangent.

Unit Conversions:

• Length: This converts an input length to compatible units.
• Area: This converts an input area to compatible units.
• Volume: This converts an input volume to compatible units.
• Velocity: This converts an input velocity to compatible units.
• Mass: This converts an input mass or weight to compatible units.
• Temp: This converts and input temperature to compatible units.
• Force: This converts an input force to compatible units.
• Pressure: This converts an input pressure to compatible units.

Other Math / Science Calculators:

• 3D Vector Calculator
• Quaternion Calculator
• Statistics Calculator