Entering Input
In a Wolfram notebook on the desktop or web, just type an input, then press SHIFT+ENTER to compute:
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In[n] and Out[n] label successive inputs and outputs. The % symbol refers to the most recent output:
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After you perform a calculation, the Suggestions Bar will provide options for further computation:
Standard symbols work for mathematical operations:
(Use a space or * for multiplication, not the “x” character.)
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Use parentheses (not braces or brackets) to show levels of grouping:
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The Wolfram Language has nearly 6,000 built-in functions, covering many areas of mathematics.
Arguments to built-in functions are separated by commas and enclosed in square brackets:
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If you don’t know what function to use, type = at the beginning of a line for natural-language input:
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Lists represent collections of items and are indicated by { ... }:
Lists are ordered. They can contain numbers, variables, computations or even other lists.
Many operations are applied elementwise:
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Starting at 1, parts of lists can be extracted using [[ ... ]]:
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