Mathematica notes
Table of Contents
Help! What is Wolfram Language?
How do I get help?
?Plot
How do I use Wolfram Alpha?
Start a cell with the equals sign, =, and type your query.
How do I type Greek letters?
Esc followed by the name of the letter.
How do I define a function?
📌 Remember to use the underscore for the arguments when defining a function.
f[x_] := x^2
How do I write an anonymous function?
The function \(x \mapsto x^2\) can be written as:
(#^2 &)
How do I pipe the output of one function into another?
2 // Sqrt
Examples
How do I compute a derivative?
D[x^2, x]
How do I solve an initial value problem?
DSolve[{y''[x] - y[x] == 0, y[0] == 1, y'[0] == 0}, y[x], x]
How do I solve a pair of algebraic equations?
Solve[{x^2 + y^2 == 1, x + y == 1}, {x, y}]
How do I plot an expression?
Plot[Sin[x], {x, 0, 2*Pi}]