Oh just a test * Increase t axis zoom to zoom out (Very logical, I know) * Increase graph quality to decrease the quality (Very logical again, I know). Recommended for high zoom settings. Not recommended for low zoom settings. * Half-life (symbol t1⁄2) is the time required for a quantity to reduce to half of its initial value. * Press N to calculate N by entering a t value * Press T to calculate t by entering an N value More information should be consulted from the Wikipedia: https://en.wikipedia.org/wiki/Half-life