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Hình động mô tả Định lý Pythago đối với tam giác vuông, trong đó thể hiện mối quan hệ đại số giữa cạnh huyền, và hai cạnh còn lại của một tam giác.
Đồ thị của hàm logarit cơ số 2 cắt trục x (trục hoành) tại 1 và đi qua các điểm có tọa độ (2, 1), (4, 2), và (8, 3). Ví dụ, log2(8) = 3, bởi vì 23 = 8. Đồ thị tiệm cận gần với trụ y, nhưng không cắt nó.