Function countFunctionLeaves

src/math-json/utils.ts:465–471

(xs: MathJsonExpression[])

}

function countFunctionLeaves(xs: MathJsonExpression[]): number {
  if (xs[0] === 'Square') {
    // Square is synonym with Power(..., 2)
    return countFunctionLeaves(xs.slice(1)) + 2;
  }
  return xs.reduce<number>((acc, x) => acc + countLeaves(x), 0);
}

/** The number of leaves (atomic expressions) in the expression */
export function countLeaves(expr: MathJsonExpression | null): number {