Page 6 of 11 Learning Skills @ CSU
4. Memory Keys
To enter a number into the memory:
Example 4.1:
To enter 852.36 in the memory
STO
Calculator steps: 8 5 2 ● 3 3 SHIFT RCL M+
To recall or use the number stored in the memory:
Example 4.2:
78 number stored
Calculator steps: 7 8 x RCL M+ =
Answer = 66 484.08
To clear the memory
STO
Calculator steps: 0 SHIFT RCL M+ AC
5. Trigonometric keys
To find a ratio given an angle: the angle may be given as degrees or as radians
To swap between degrees and radian mode:
Calculator steps: SHIFT MODE SETUP 3 for degrees mode
SHIFT MODE SETUP 4 for radians mode
Example 5.1:
Sin
Make sure your calculator is in degrees mode
Calculator steps: sin 5 2 ) =
remember to close the bracket
Answer = 0.7880107536
Note
An M will appear on the display
when a number is stored in the
memory.
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