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Transform complex LaTex mathematical expressions into readable, composable R code. Instead of wrestling with backslashes and braces, express your mathematics naturally using familiar R syntax.
\frac{d}{dt} \left \langle V,W \right \rangle = \left \langle \frac{DV}{dt}, W \right \rangle + \left \langle V, \frac{DW}{dt} \right \rangle
<- lsymb("V")
vf1 <- lsymb("W")
vf2 <- function(x, y) ang(lsymb(x, ",", y))
inner <- function(x) lsymb("D", x) / "dt"
cov.der <- function(x) lsymb("d", x) / "dt"
ddt
ddt(inner(vf1, vf2)) *eq* inner(cov.der(vf1), vf2) + inner(vf1, cov.der(vf2))
# Division automatically becomes \frac
/ y # → \frac{x}{y}
x
# Powers become superscripts
^2 # → x^{2}
x
# Subscripts with under()
|> under(i) # → x_{i} x
No more \left
and \right
headaches!
pths(x / y) # Parentheses with auto-sizing
ang(x, y) # Angle brackets ⟨x,y⟩
sqbr(x + y) # Square brackets [x+y]
br(condition) # Braces {condition}
Build complex expressions from simple, reusable parts:
# Define semantic functions
<- function(x) lsymb("\\mathbb{E}") * sqbr(x)
exp_val <- function(x) pths(x)^2
sq <- function(x) lsymb("\\abs{", x, "}")
abs
# Compose naturally
exp_val(sq(abs(x) - y)) # → 𝔼[(|x| - y)²]
<- list(
proof_steps * dist(x, y) * leq * dist(x, z) + dist(z, y) * endl,
ruler * thus * dist(x, y) - dist(x, z) * leq * dist(z, y)
ruler |>
) lenv("align*", rows = _)
data(common)
attach(common)
# Instantly use: alpha, beta, mu, sigma, eq, leq, sum, int, infty...
Released version from CRAN:
install.packages("latexSymb")
Development version from GitHub:
# install.packages("devtools")
::install_github("nicoesve/latexSymb") devtools
library(latexSymb)
data(common)
attach(common)
# Define components
<- lsymb("\\bar{x}")
sample_mean <- function(x) lsymb("\\sqrt{", x, "}")
sqrt <- lsymb("\\overset{d}{\\rightarrow}")
conv_distr
# Express the theorem
<- sqrt(n) * (pths(sample_mean - mu) / si) * conv_distr * lsymb("N(0,1)") clt
vignette("vignette1", package = "latexSymb")
for getting
startedvignette("advanced_usage", package = "latexSymb")
for
complex examples?latexSymb
Stop fighting with LaTex syntax. Start expressing your mathematics naturally with latexSymb!
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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