Functions
- Sine: sin()
- Cosine: cos()
- Tangent: tan()
- Secant: sec()
- Cosecant: csc()
- Cotangent: cot()
- Inverse Sine: arcsin()
- Inverse Cosine arccos()
- Inverse Tangent: arctan()
- Inverse Secant: arcsec()
- Inverse Cosecant: arccsc()
- Inverse Cotangent: arccot()
- Natural Log: ln()
- Log Base 10: log10()
- Square Root: sqrt()
- Exponents: ^ or **
- Multiplication: *
- Hiperbolic Sine: sinh()
- Hiperbolic Cosine: cosh()
- Hiperbolic Tangent: tanh()
- Hiperbolic Secant: sech()
- Hiperbolic Cosecant: csch()
- Hiperbolic Cotangent: coth()
- Inverse Hiperbolic Sine: 1/sinh()
- Inverse Hiperbolic Cosine: 1/cosh()
- Inverse Hiperbolic Tangent: 1/tanh()
- Absolute Value: abs()
Slide the keyboard to left or to right to view other expressions.
Constants
- pi = 3.14159265358979
- e = 2.71828182845904
Graph
- The graph has modes for standard,
polar and parametric functions.
Standard and polar use x as the independent variable
(since there is no theta on your keyboard),
and parametric equations use t.
The 3D graph, uses x and y.
The functions will turn green if they are valid and red if they are not.
Currently, only standard functions support the trace and dy/dx feature.
Bounds for the polar and parametric functions can be found in window settings.
Derivative
- The derivative must be a function of the
variable(s) you specify. For partial derivatives,
enter multiple, comma-seperated variables in the f(__) field.
The function will turn green when valid. If it is red,
you may click Derive to be told of any errors.
The derivative may appear to be quite messy for higher
orders or complicated functions, but it is always correct.
Integration, Arc Length & Surface Area
- Integration and arc length on newer phones
should be nearly instantaneous.
On older phones there may be a slight lag.
For double integration and surface area, there may be some lag on
newer phones and significant lag on older.
The tool uses the Romberg method for
numerical integration which is the extremely efficient,
but you are still using a phone.
If there is discontinuity over the interval,
the program may not recognize
it and return a blatantly invalid input.
Limit of a function
- This feature is still in beta so there may be errors of calculation.
The app is constantly evolving and we are working to correct
all bugs. The usage is very simple and intuitive.
The function turns green when it is valid, otherwise it is red.
Indefinite Integral
- The calculation of indefinite integrals on new phones
should be almost instantaneous.
On older phones there may be a slight delay.
The function turns green when it is valid, otherwise it is red.
Taylor Series
- The Taylor series is calculated by inserting the function, and the variable
which to perform the calculation.
The series is centered on zero by default, and at this moment this option
can't be changed.
The function turns green when it is valid, otherwise it is red.
Tangent Line
- Tangent line is calculated by inserting the function,
the variable and the point on which to perform the calculation.
The function turns green when it is valid, otherwise it is red.
Additional features
- Once you have calculated the derivative or the Indefinite Integral or the Taylor Series or the Tangent Line for a function, the app allows you to immediately draw the graph
of the original function and the result of the calculation. It is also possible to evaluate the result of the calculation of a point in our choice.