**exp** - e^x

**ln** - natural logarithm

**sqrt** -square root

**x**^{2} - square of x

**/**- division

*****- multiplication

**-** - subtraction

**+** adition

**.**fraction mark

**+-**-it changes the sign of the number

**1/x**-inverse of a number

**cos**- cosine of a number (radians)

**sin**- sine of a number (radians)

**tan**- tangent of a number

**( )**- parentesis. Ex:2+(4-7)

**pi**- 3.14159265...

**acos**- arc cosine of a number (radians)

**asin**- arc sine of a number (radians)

**atan**- arc tangent of a number (radians)

**x**^{3}- X at the third power

**Rnd**- random number

**cosh**- hyperbolic cosine of a number (radians)

**sinh**- hyperbolic sine of a number (radians)

**tanh**- hyperbolic tangent of a number
(radians)

**cbrt**- cubic root

**log **-decimal logarithm of a number

**10**^{x}- antilogarithm of a number

**D->R**- degree to radians

**R->D**- radians to degree

**X^Y **- X in the Y power

**A- **area of a circle, given radius

**V **- volume of a sphere, given radius

**C/CE**- clear/clean error

**<--** (back space) when pressed delete last
digit

**Enter**- press to solve

**1**-If when you reload doesn't appear keybord

click on your browser location and press ENTER

in your computer keyboard.

**2**-Functions **asin** and **acos** work for limited
numbers

i.e: -1 < X < +1 for **asin**.

**3**-Functions **sin**, **cos** and **tan** work in
radians only.

**4**-Cubic Root (**cbrt**) returns negative and positive
results.

**5**-Many numbers can appear with garbage in the last
digits

Example:

sin(pi)= 0.00000000000000012246063538223773

instead of 0 (zero).

1.4*1.4=1.9599999999999997 instead of 1.96.

Author name is mentioned at the body of the HTML
code.