My code (relevant section is rotateXY() method):

`

import math from "mathjs"

export abstract class GeometryUtils {

public static getDirection(vector: math.MathArray): math.MathArray {
    let norm = math.norm(vector);
    if (norm === 0) {
        return vector;
    }

    return math.divide(vector, norm) as math.MathArray;
}

public static rotateXY(vector: math.MathArray): math.MathArray {
    return math.rotate(vector, [0, 0, 1]);
}

}

`

My tsc error:

`

tsc
ts/geometry_utils.ts:15:21 - error TS2339: Property 'rotate' does not exist on type 'MathJsStatic'.

15 return math.rotate(vector, [0, 0, 1]);
~~~~~~

Found 1 error.

`

Looking at index.d.ts in the repo confirms. mathjs version is 10.0.2. Has this been deprecated?