3. Scientific Functions
Scientific Calculations are performed in the same manner as basic computations. As you will note in the
following examples, scientific functions are used as you would normally read them,
a. Trigonometric functions
The angular mode is designated by the IprgI key. As you press this key the mode "DEG" "RAD''
"GRAD" will appear at the top of the display. Put the angular mode at "DEG".
Key in the following:
SIN 30 CB COS 40 [=D
Answer: 1.266044443
Put the angular mode at "RAD"
Key in: COS .25 7r □=□
Answer: 0.707106781
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