Module parameter 

Symbolic and numeric parameter type for quantum circuit gate angles.

Parameter wraps a symb_anafis::Expr expression tree, allowing gate parameters to be either concrete floating-point numbers or symbolic expressions containing free variables (e.g. θ, φ). Symbolic parameters can be composed with arithmetic operators, differentiated, simplified, and finally evaluated by supplying variable bindings.

Quick start

use cqlib_core::circuit::Parameter;

// Numeric parameter
let angle = Parameter::from(std::f64::consts::PI / 2.0);

// Symbolic parameter
let theta = Parameter::symbol("θ");
let expr  = theta.clone() * Parameter::from(2.0) + Parameter::pi();

// Evaluate with a concrete binding
let val = expr.evaluate(&Some([("θ", 0.5)].iter().cloned().collect())).unwrap();

Structs

Parameter

A symbolic or numeric parameter used to represent gate angles and other continuous values in a quantum circuit.