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Function Calculator

Tool for calculating the different values of a function from its equation f(x) and given values in order to compute their images by the function calculator.

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Function Calculator -

Tag(s) : Functions

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# Function Calculator

## Find Equation from Values

⮞ Go to: Equation Finder

Tool for calculating the different values of a function from its equation f(x) and given values in order to compute their images by the function calculator.

### How to calculate the values of a function?

The value (or image) of a function $f (x)$ is the value of the function $f$ for a given value of $x$.

Example: $f (x) = 3x$ then for $x = 2$ the value of $f (2) = 6$

The calculation of the values can be done on the entire domain of definition of the function. Any calculation of a value outside the definition domain will result in an error.

The totality of the values can be represented in a form of curve which is the graphical representation of the function.

### How to calculate the preimage of a value?

dCode has a tool to calculate the preimage by a function, ie the values of $x$ for which the function has a given value.

### How to apply a function over a whole table of value?

It is common to want to apply a function to a variety of values, such as an Excel column. Specifying the mathematical function to apply and dCode will calculate all the values automatically.

## Source code

dCode retains ownership of the online 'Function Calculator' tool source code. Except explicit open source licence (indicated CC / Creative Commons / free), any algorithm, applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (PHP, Java, C#, Python, Javascript, Matlab, etc.) no data, script or API access will be for free, same for Function Calculator download for offline use on PC, tablet, iPhone or Android !

## Need Help ?

Please, check our community Discord for help requests!