About lýsei.

Greek: λύσει (lýsei) - to solve.

Enter the expression you wish to solve and press >>. To change the precision of the calculation and the verbosity of the output click on the settings icon

The expression may use any of the following operands (specified in order of precedence)

^ Raise to the power of
* Multiplication
/ Division
+ Addition
- Subtraction

Expressions inside brackets will always be evaluated first.


Additionaly it may use any of the following functions in the form function(value) or the constant PI.

abs Returns the absolute value of a specified number.
cei Returns the smallest integral value greater than or equal to the specified number.
cos Returns the cosine of the specified angle.
flr Returns the largest integral value less than or equal to the specified number.
l10 Returns the base 10 logarithm of a specified number.
log Returns the logarithm of a specified number.
sin Returns the sine of the specified angle.
sqr Returns the square root of a specified number.
tan Returns the tangent of the specified angle.

Variable substitution is also allowed. Specify the variable names as x,y,x1,y2 etc. You will be prompted to enter values for these variables before the expression is resolved.