Method sin

__test__/theorem.js:491–510

(n)

  	return new BigNumber(x).times(180).div(this.pi)
  }
  sin(n) {
  	if (n.isComplex) {
  		const a = n.a.toNumber()
  		const b = n.b.toNumber()
  
  		const re = Math.cosh(b) * Math.sin(a)
  		const im = Math.cos(a) * Math.sinh(b)
  
  		return this.complex(re, im)
  	}
      if (typeof n != 'object' || BigNumber.isBigNumber(n)) {
          n = BigNumber.isBigNumber(n) == true ? n.toNumber() : n
          n = [n]
      }
      let result = []
      for (var i = 0; i < n.length; i++) {
          result.push(Math.sin(n[i]).toFixed(15))
      }
      return result.length == 1 ? result[0] : result
  }
  sinh(n) {
  	if (n.isComplex) {
  		const a = n.a.toNumber()