(1.24984 - (0.3328092 * depth) + (0.01414433 * Math.pow(depth, 2))-(0.0002039428 * Math.pow(depth, 3))) code example

Example: js pow

Math.pow(base, exponent);

Math.pow(2, 4);
// Outputs 16
// The same as going 2^4, 2 to the power of 4