Function Analysis
This section explains commands and functions that you can input after performing the operation: 
– [Func Analysis].
Logarithm(log)
Use 
or – [Func Analysis] > [Logarithm(log)] to input "log".
Example: log101000 = log 1000 = 3
- 1000
Natural Logarithm
Use 
(ln) or – [Func Analysis] > [Natural Logarithm] to input "ln".
Example: ln 90 (= loge90) = 4.49980967
- (ln)90
