fx-82MS fx-82TL fx-9860GII TI-83
(–)
On a Casio calculator you can enter a minus sign
(−)
Example 1
To calculate 5 × −2 = −10
5 × (−) 2 = 5×-2
-10.
Example 2
To calculate 2−1 = 0.5
2 ^ (−) 1 = 2^-1
0.5
Example 3
To store the value −123 in variable A
(−) 1 2 3 RCL A -123→A
-123.
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Example 4
To calculate cos-1(−1) = π
cos (−) 1 = cos-1 -1
3.141592654
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Example 5
To calculate (−2)4 = 16
( (−) 2 ) ^ 4 = (-2)^4
16.
When a calculation contains an argument that is a negative number, this negative number must be enclosed within brackets. The negative sign (−) is treated as a type B function, so particular care is required when the calculation includes a high priority type A function, or power or root operation.
Example 6
A negative sign cannot be used to perform a subtraction
2 (−) 1 2-1_
0.= Syntax ERROR
Example 7
To calculate 2 − − 1 = 3
2 − (−) 1 = 2− -1_
3.
Example 8
To calculate 3 × 5 × 10−9 = 1.5 × 10−8
3 × 5 EXP (−) 9 = 3×5E-9
1.5×10-08