A way to remember the definitions of the three most common trigonometry functions: sin, cos and tan.
Used as a memory aid for the definitions of the three common trigonometry functions sine, cosine and tangent. When spoken it is usually pronounced a bit like "soaka towa".
|SOH||Sine = Opposite over Hypotenuse.|
|CAH||Cosine = Adjacent over Hypotenuse.|
|TOA||Tangent = Opposite over Adjacent.|