Method polynomial

__test__/theorem.js:767–785

()

  	return index[buffer.indexOf(close)]
  }
  polynomial() {
  	const arg = [...arguments]
  	const args = this.reverse(arg)
  	let buffer = "";
  	for (let i = 0; i < args.length; i++) {
  		buffer += `${args[i]} * x**${i} ${i == args.length -1 ? '': '+ '}`
  	}
  	return {
  		type: "polynomial",
  		v: "x",
  		f: buffer,
  		values: arg,
  		core: x => {
  			let regex = new RegExp("x")
  			let newStr = buffer.replace(regex, `(${x})`)
  			return eval(newStr).toFixed(14)
  		}
  	}
  }
  run(f, x) {
  	x = new BigNumber(x).toNumber()
  	let out = 0