{
   variableDescriptions: [{
       label: "k",
       labelForUser: 'Коэффициент k',
    }, {
      label: "Isz",
      labelForUser: 'Пусковой ток'}],

  fn: (x) => {
     const k = this.variables['k'];
     const Isz = this.variables['Isz'];
     return k * 0.14 /(Math.pow(x/Isz,0.02)-1);
  }
}