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Keys
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Function
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Input Value(s)
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Result
|
 fLN
|
Natural logarithm (base e)
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x not zero or less (x > 0)
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ln (x) in X
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f-1LN
|
Natural antilogarithm (ex)
|
Unrestricted x
|
ex in X
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fLOG
|
Common logarithm (base 10)
|
x not zero or less (x > 0)
|
log (x) in X
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f-1LOG
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Common antilogarithm (10x)
|
Unrestricted x
|
10x in X
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f
|
Square root (√x)
|
Non negative x (x ≥ 0)
|
√x in X
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f-1
|
Square x2
|
Unrestricted x
|
x2 in X
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g1/x
|
Reciprocal (1/x)
|
Non zero (x ≠ 0)
|
1/x in X
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gn!
|
Integer factorial (n!)
n! = 1 23. . . (n-1)n
0! = 1
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Non negative integer n in x (x ≥ 0; x an integer)
|
n! in X
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gyX
|
Exponential yx
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Positive y and unrestricted x (y > 0)
|
yx in X; stack drops
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