Numerical solution of the ordinary first order differential equation
The solution of the differential equation is solved numerically. The method can be selected. Three Runge-Kutta methods are available: Heun, Euler and RK4. The initial value can be varied by dragging the red point on the solution curve. In the input field for f (x, y) may be used up to three parameters a, b and c can be varied by means of the slider in the graphics.
Usable expressions in the definition of the function f(x,y)
Natural logarithm of 2
Natural logarithm of 10
Base 2 logarithm of EULER
Base 10 logarithm of EULER
Ratio of the circumference of a circle to its diameter
Square root of 1/2
Square root of 2
sine of x
Cosine of x
Tangent of x
arccosine of x
arctangent of x
Returns the arctangent of the quotient of its arguments.
Hyperbolic cosine of x
Hyperbolic sine of x
Logarithm and Exponential
e to the b
Square root of x
EULER to the x
Logarithm to base b
Logarithm to base 2
Logarithm to base 10
Get smallest integer n with n > x.
Absolute value of x
max(a, b, c, ...)
Maximum value of all given values.
min(a, b, c, ...)
Minimum value of all given values.
random(max = 1)
Generate a random number between 0 and max.
Returns the value of a number rounded to the nearest integer.
Returns the biggest integer n with n < x.
trunc(v, p = 0)
Truncate v after the p-th decimal.
Returns the value of the given element, e.g. sliders and angles.