linear_expand_expr {lazy.symbolic}R Documentation

Lienarly Distribute Functions

Usage

linear_expand_expr(
  expr,
  ...,
  exchangable_ops = c(""),
  most_out = c("+", "-"),
  type = c("binary", "unary", "both")
)

Arguments

expr

an expression or a string

...

Character strings giving function or operator names to be linearly expanded (e.g., '"tr"', '"inv"', '"*"').

exchangable_ops

Character vector of additional operators/functions to be expanded. By default empty, but the names supplied in '...' are automatically included here.

most_out

specifies which operators are regarded as the "outermost" targets for distribution. By default c("+","-"), so functions are distributed over addition/subtraction (e.g., tr(A-B) -> tr(A) - tr(B)). If changed, distribution can be applied with respect to other operators. For example, most_out = "

\item

typeOne of '"binary"', '"unary"', or '"both"'. Controls whether only binary calls (length 3), only unary calls (length 2), or both are targeted for expansion. Default is '"both"'.

an expression Japanese help file: linear_expand_expr_JPH

linear_expand_expr("tr(A-B)", "tr", "inv") linear_expand_expr("inv(tr(A-B)) %*% C", "tr") linear_expand_expr("tr(A-B+C)", "tr") linear_expand_expr("A-B", "tr")

linear_expand_expr("A%*%(X-B)", "%*%") linear_expand_expr("tr(A%*%(X-B))", "tr", "%*%", "(") linear_expand_expr("tr(A%*%(X-B))", exchangable_ops = c("tr", "%*%", "("))

linear_expand_expr("(A-B)*(A-B)", "*")

linear_expand_expr("tr(A%*%B)", "tr", most_out = "%*%")

linear_expand_expr("tr(A-B) - tr(-A)", "tr", type="binary") linear_expand_expr("tr(A-B) - tr(-A)", "tr", type="unary") linear_expand_expr("tr(A-B) - tr(-A)", "tr", type="both")

[Package lazy.symbolic version 1.0.0.20250830 ]