Русская версия # Draw a Function Graph Online

Graph in the Cartesian coordinate systemGraph of a parametric functionExamplesRules

## Rules for Entering Functions

• You don't need to write the multiplication sign between a number and a variable (parentheses, function).
• FunctionIt is possible to write
4 * x4x
2 * (x+1)2(x+1)
• If the argument of a function is x, 2x, 3x, and so on then you don't need to write the parentheses.
• FunctionIt is possible to write
sin(2*x)sin2x
tg(4*x)tg4x
• In any other case, the function argument must be written in parentheses.
• FunctionYou must write
sin(x/4)sin(x/4)
tg(2x+pi/4)tg(2x+pi/4)
• You don't need to write the multiplication sign between a parentheses and a functions.
• FunctionIt is possible to write
2 * (x+1) * (x-2)2(x+1)(x-2)
3 * (x-2) * cos2(x+pi)3(x-2) cos(x+pi)**2
4 * sin(2*x) * cos(x+pi)24sin2x cos((x+pi)**2)
• The decimal fraction must be written using a dot. For example: 0.5
• If you want to exponentiate m/n where n is odd, then you cannot use exponentiation.
• You cannot useYou must use
x **(1/3)root(3,x)
x **(2/3)root(3,x**2)

## Designations

+   -   /   *addition, subtraction, division and multiplication
** or ^exponentiation
root (n,x)root of n-th degree. n = 2, 3, 4, 5 and so on.
pipi
sin (x)sine of x
cos (x)cosine of x
tan (x)tangent of x
cot (x)cotangent of x
ln (x)natural logarithm
lg (x)decimal logarithm
log (n,x)lognx   n > 0   n ≠ 1
exp (x)ex
asin (x)arcsine of x
acos (x)arccosine of x
atan (x)arctangent of x
acot (x)arccotangent of x
abs (x)|x|
• If you want to draw a parametric graph the variable t is used instead of the variable x.
• Please select t range not more than 200 pi.