Chortke

Chortke is a scientific calculator giving you the opportunity to facilitate your calculations and studies.

This is a project done by three undergraduate students at Sharif University of Technology.

Run

Simply :

make

How to wotk with 😎

You can surf in program so easily. For the very first step you should choose your favorite mode in bellow-like menu.

Welcome to "Chortke"! :D
Choose a character to surf into different parts of Chortke:
e : for entering numerical equation
g : for graphing function(y = f(x))
p : for plotting equation(0 = f(x,y))
s : for solving equation for x
c : for see/change configure your plot
i : for evaluating integral of y = f(x) from a to b
q : for quiting from Chortke :(

• you can escape from each part with simply entering "quit".
• feel free from using ( , ) , + , - , ! , ^ , * , / , exp , ln , sin , cos , tan , abs and so on in all parts of program.
• Note using parentheses while using functions(ex: 2*(sin(pi)) instead of 2*sin(pi)).

Numerical equation mode : This mode allows you to see the numerical answer of your numerical equation. Follow the samples bellow and you'll catch everything about this mode.

= 2 + 2

Result is : 4.000000

= (5 + 3) / 5.6

Result is : 1.428571

= (5*(9.2/2-(5+6)))/(-6)

Result is : 5.333333

= sin(pi/2)

Result is : 1.000000

= sin(ln(sin(pi/4)))

Result is : -0.339677

= (sin(pi/4))^2 + (cos(pi/4))^2

Result is : 1.000000

Graphing functions : Enter a function equals to y (like the example bellow) and you'll see it's plot in Domain of -r < x < r (where r is defined as a configuration in 'c' mode)

y = ln(x^2)

also it's .bmp plot picture will save here in Chortke directory till you decide to plot newer function.

Graphing none-functions : This time you should enter a function of x and y equals to 0 and Da Daaa 😄 here you are, testing example bellow will help you find how it's work.

0 = sin(x*y)

Graphing equation for x : enter your x desired equation and makes it in a shape that is f(x) = 0 then you'll have it's Real answer(s) in determined x domain in mode 'c'.

0 = x^2 - 1

Result is :

X1 = -1.000
X2 =  1.000

0 = x^2 + 1

Result is :

No answer for x in the domain with accurecy of 0.010000.

Integrating from function : First you enter your function of x then you can enter your first and end points of integration domain then you will have the amount of function's integration.

y = x
a = 0
b = 1

Result is :

S(x)dx = 0.5000

Or in a more complex way :

y = x^2 + (sin(x))
a = (2^2 - 4*2)*(-2)
b = pi ^ e

Result is :

S(x^2 + (sin(x)))dx = 3607.0842

Configuration menu : This menu will show your plotting configuration and ask you if you want to change any of them.

---------------------Configuration---------------------
x Domain : -10.00 < x < 10.00
axis color: 0xa000a0
screen color:0xffffff
plot color: 0x00ff00
-------------------------------------------------------

• Note that colors should be entered in HexaDecimal #RGB for example #ff0000 is fully red while #00ff00 is fully Green.

Developers

• Sadra Sabouri Sadra Sabouri
• Haniyeh Tajer Haniyeh Tajer
• Amirali Ekhteraee Amirali Ekhteraee