39
Clear all number
Space+Backspace
7+Space
For example, if you want to get the result of '1+2', you should press '1', '+', ''2' one by one, and then
press Enter, you will get the equation and result, ''1+2=3'. If the equation and result is longer than one
and you can use LB and RB to display the whole equation and the result. If you want to begin a new
equation, please input new number directly and the old equation will be clear automatically. Of course
you can also use result '3' as new equation beginning number.
If you want to enter in negative numbers, you should type in minus (3-6) and the number together in
parentheses. For example, you should type in minus, 2 in the following manner: '-2'.
2.7.2 The scientific calculator
The scientific Calculator allows you to perform more scientific arithmetic operations, such as: exp(x),
ln(x), log10(x), sqrt(x), cbrt(x), sin(x), cos(x), tan(x), pow(x,y) and percent.
You should input the number and then press Enter to get the result. You should input the left and
right bracket if you use scientific formula.
Operator
Standard Braille
Braille
exp(x)
calculate e^x, e is napierian base.
e
1-5
ln(x)
natural logarithm, x>0.
n
1-3-4-5
