solve_triangular: Solve lower or upper triangular system

In r-cas/caracas: Computer Algebra

Solve lower or upper triangular system

Description

Solve lower or upper triangular system

Usage

solve_lower_triangular(a, b, ...)

solve_upper_triangular(a, b, ...)

Arguments

a	caracas_symbol
b	If provided, either a caracas_symbol (if not, as_sym() is called on the object)
...	Not used

Examples

if (has_sympy()) {
  A <- matrix_sym(3, 3)
  A[upper.tri(A)] <- 0
  solve_lower_triangular(A) |> simplify()
  A <- matrix_sym(3, 3)
  A[lower.tri(A)] <- 0
  solve_upper_triangular(A) |> simplify()
}

r-cas/caracas documentation built on Feb. 28, 2025, 3:39 p.m.