# Basics

• Run simulation
• Reset simulation
• Collapse scoops
• Clear worksheet
• Copy
• Past

### Most common expressions

• Infinite(a,b) = $\infty$ for $x < a$ & $x < b$, $0$ for $a < x < b$
• Box(a,b) = $0$ for $x < a$ & $x > b$, $1$ for $a < x < b$
• Step(a) = $0$ for $x < a$, $1$ for $x > a$
• The harmonic potential:  0.5*a*x^2
• The gaussian free particle:  sqrt(sqrt(a/pi))*exp(-0.5*a*x^2)

Error:                 Warning:

Errors indicate that the node is unable to calculate its outputs, while warnings simply indicate possible oversights that may lead to surprising behavior.

Composer normalizes the wave functions with the natural unit-system of $\hbar = m = 1$