absolute value

Calculus abs

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Function : abs

Summary :

The abs function calculates online the absolute value of a number.

Abs online

Description :

Absolute value function

The absolute value of a real number is equal to that number if it is positive, the opposite of this number if it is negative. The absolute value note abs. With this notation :

  • If `x>=0` abs(x)=`abs(x)`=x
  • If `x<0` abs(x)=`abs(x)`=-x

  1. Calculation of the absolute value
  2. With the absolute value calculator, the function abs can calculate the absolute value online of a number.

    To calculate the absolute value of a number, just enter the number and to apply the function abs. Thus, for calculating the absolute value of the number -5, you must enter abs(-5) or directly -5, if the button abs already appears, the result 5 is returned.

  3. Derivative of absolute value
  4. The derivative of the absolute value is equal to :

    • 1 if `x>=0`,
    • -1 if x<0

  5. Antiderivative of absolute value
  6. The antiderivative of the absolute value is equal to abs(x).

    • `intabs(x)=x^2/2` if `x>=0`,
    • `intabs(x)=-x^2/2` if x<0

  7. Limits of absolute value
    • The limits of the absolute value exist at `-oo` and `+oo`:
    • The absolute value function has a limit in `-oo` which is `+oo` .
      • `lim_(x->-oo)abs(x)=+oo`
    • The absolute value function has a limit in `+oo` which is `+oo`.
      • `lim_(x->+oo)abs(x)=+oo`

  8. Equation with absolute value
  9. The calculator has a solver that allows him to solve a equation with absolute value . The calculations for obtaining the results are detailed, so it will be possible to solve equations like `|x|=2` or like `|2*x+4|=3` or like `|(x^2-1)|=1` with the steps calculations.

  10. Properties of the absolute value function
  11. The absolute value function is an even function, for every real x, `abs(-x)=abs(x)`. The consequence for the curve representative of the absolute value function is that it admits the axis of the ordinates as axis of symmetry.


The abs function calculates online the absolute value of a number.


Syntax :

abs(x), where x is a number


Examples :

abs(-5) returns 5


Derivative absolute value :

To differentiate function absolute value online, it is possible to use the derivative calculator which allows the calculation of the derivative of the absolute value function

The derivative of abs(x) is derivative(abs(x))=`1`


Antiderivative absolute value :

Antiderivative calculator allows to calculate an antiderivative of absolute value function.

An antiderivative of abs(x) is antiderivative(abs(x))=`x/2`


Limit absolute value :

The limit calculator allows the calculation of limits of the absolute value function.

The limit of abs(x) is limit(abs(x))


Graphic absolute value :

The graphing calculator is able to plot absolute value function in its definition interval.



Property of the function absolute value :

The absolute value function is an even function.
Calculate online with abs (absolute value)
See also :
  • Absolute value : abs. The abs function calculates online the absolute value of a number.
  • Arccosine : arccos. The arccos function allows the calculation of the arc cosine of a number. The arccosine function is the inverse functions of the cosine function.
  • Arcsine : arcsin. The arcsin function allows the calculation of the arc sine of a number. The arcsine function is the inverse function of the sine function.
  • Arctangent : arctan. The arctan function allows the calculation of the arctangent of a number. The arctangent function is the inverse functions of the tangent function.
  • Hyperbolic cosine : ch. The function ch calculates online the hyperbolic cosine of a number
  • Cosine : cos. The cos trigonometric function calculates the cosine of an angle in radians, degrees or gradians.
  • Cotangent : cotan. The cotan trigonometric function to calculate the cotangent of an angle in radians, degrees or gradians.
  • Hyperbolic cotangent : coth. The coth function calculates online the hyperbolic cotangent of a number.
  • Cube root : cube_root. The cube_root function calculates online the cube root of a number.
  • Exponential : exp. The function exp calculates online the exponential of a number.
  • Napierian logarithm : ln. The ln calculator allows to calculate online the natural logarithm of a number.
  • Logarithm : log. The log function calculates the logarithm of a number online.
  • Hyperbolic sine : sh. The sh function allows to calculate online the hyperbolic sine of a number.
  • Sine : sin. The sin trigonometric function to calculate the sine of an angle in radians, degrees or gradians.
  • Square root : sqrt. The sqrt function allows to calculate the square root of a number in exact form.
  • Tangent : tan. The tan trigonometric function to calculate the tangent of an angle in radians, degrees or gradians.
  • Hyperbolic tangent : th. The function th allows to calculate online the hyperbolic tangent of a number.