# How do you evaluate a function in Wolfram Alpha?

## How do you evaluate a function in Wolfram Alpha?

The fundamental operation that the Wolfram Language performs is evaluation. Whenever you enter an expression, the Wolfram Language evaluates the expression, then returns the result….Evaluation of Expressions.

x=y do not evaluate the left‐hand side
Plot[f,{x,…}] evaluate f with a sequence of numerical values for x

How do you write in Wolfram Alpha?

, and the “symbol” keyboard accessed by a second press of the left-shift key.

### How do you evaluate the function?

Evaluating a function means finding the value of f(x) =… or y =… that corresponds to a given value of x. To do this, simply replace all the x variables with whatever x has been assigned. For example, if we are asked to evaluate f(4), then x has been assigned the value of 4.

How do you evaluate an expression in math?

To evaluate an algebraic expression means to find the value of the expression when the variable is replaced by a given number. To evaluate an expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations.

#### How do you create a multiline function in Mathematica?

1. Use Module[{y},…] to make y a local variable.
2. You mean I should write : myFunction[x]:=Module[{y},y=x;y=y+3;(y+3)^3] And I can do newline between my “;”?
3. Take a look reference.wolfram.com/language/howto/… and mathematica.stackexchange.com/a/39464/5478 for more basic tutorials.

How do you define a variable in Wolfram Alpha?

Defining Variables and Functions

1. x=… — set a variable.
2. f[x_]:=… — define a function that takes any single argument.
3. Set (=) — immediate assignment (right-hand side evaluated immediately)
4. SetDelayed (:=) — delayed assignment (right-hand side evaluated only when used)
5. Unset (=.) —
6. Clear — clear a function definition.

## What can you do with Wolfram Alpha?

Wolfram|Alpha computes answers to specific questions using its built-in knowledgebase and algorithms.

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