Nothing
server = function(input, output, session) {
output$ex1 <- renderUI({
withMathJax(helpText('Dynamic output 1: $$\\alpha^2$$'))
})
output$ex2 <- renderUI({
withMathJax(
helpText('and output 2 $$3^2+4^2=5^2$$'),
helpText('and output 3 $$\\sin^2(\\theta)+\\cos^2(\\theta)=1$$'))
})
output$ex3 <- renderUI({
withMathJax(
helpText('The busy Cauchy distribution
$$\\frac{1}{\\pi\\gamma\\,\\left[1 +
\\left(\\frac{x-x_0}{\\gamma}\\right)^2\\right]}\\!$$'))
})
output$ex4 <- renderUI({
invalidateLater(5000, session)
x <- round(rcauchy(1), 3)
withMathJax(sprintf("If \\(X\\) is a Cauchy random variable, then
$$P(X \\leq %.03f ) = %.03f$$", x, pcauchy(x)))
})
output$ex5 <- renderUI({
if (!input$ex5_visible) return()
withMathJax(
helpText('You do not see me initially: $$e^{i \\pi} + 1 = 0$$'))
})
}
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