mathsteps/lib/node/NthRootTerm.js

Step by step math solutions

const NodeType = require('./Type');
const Term = require('./Term');

// For storing nth root terms, which are a subclass of Term
// where the base node is an nth root
class NthRootTerm extends Term {
  constructor(node, onlyImplicitMultiplication=false) {
    super(node, NthRootTerm.baseNodeFunc, onlyImplicitMultiplication);
  }
}

// Returns true if the term has a base node that makes it an nth root term
// e.g. 4x^2 has a base of x, so it is not an nth root term
// 4*sqrt(x)^2 has a base of sqrt(x), so it is an nth root term
NthRootTerm.baseNodeFunc = function(node) {
  return NodeType.isFunction(node, 'nthRoot');
};

// Returns true if the node represents an nth root term.
// e.g. nthRoot(4), nthRoot(x^2), 4*nthRoot(10)^2
NthRootTerm.isNthRootTerm = function(
  node, onlyImplicitMultiplication=false) {
  return Term.isTerm(
    node, NthRootTerm.baseNodeFunc, onlyImplicitMultiplication);
};

module.exports = NthRootTerm;