Equana

Syntax

x = sym(s)
x = sym(n)

Description

Creates a symbolic variable from a string name or converts a number to a symbolic number. Supports both function syntax sym('x') and command syntax sym x. When given a simple variable name, creates a symbolic variable. When given an expression string, parses it into a symbolic expression.

Parameters

Returns

Symbolic variable or expression

Examples

>> x = sym('x')

x

>> sym x

x

>> f = sym('x^2 + 2*x + 1')

x^2 + 2*x + 1

>> half = sym(1/2)

1/2