Function infix

MathBox/mathbox-bundle.js:79361–79368

(id, bp, led)

}

function infix(id, bp, led) {
  var sym = symbol(id, bp)
  sym.led = led || function(left) {
    this.children = [left, expression(bp)]
    this.type = 'binary'
    return this
  }
}

function infixr(id, bp, led) {
  var sym = symbol(id, bp)