函数计算器

逐步计算函数的性质

该计算器将尝试求出一元函数的定义域、值域、x 轴截距、y 轴截距、导数、积分、渐近线、单调增区间和单调减区间、临界(驻)点、极值点(极小与极大,局部、相对、绝对与全局)、凹凸区间、拐点、极限、泰勒多项式以及图像。可以指定区间。还将判断奇偶性。

Enter a function of one variable:
Enter an interval:
Required only for trigonometric functions. For example, `[0, 2pi]` or `(-pi, oo)`. If you need `oo`, type inf.

If the calculator did not compute something or you have identified an error, or you have a suggestion/feedback, please contact us.

Your input: find the properties of $$$f=x^{4} - 6 x^{2}$$$

Parity

The function is even.

Domain

$$$\left(-\infty, \infty\right)$$$

x-intercepts

$$$\left(0,0\right)$$$

$$$\left(\sqrt{6},0\right)\approx \left(2.44948974278318,0\right)$$$

$$$\left(- \sqrt{6},0\right)\approx \left(-2.44948974278318,0\right)$$$

y-intercepts

$$$\left(0,0\right)$$$

Range

$$$\left[-9, \infty\right)$$$

Critical Points

$$$\left(x, f \left(x \right)\right)=\left(- \sqrt{3},-9\right)\approx \left(-1.73205080756888,-9\right)$$$

$$$\left(x, f \left(x \right)\right)=\left(0,0\right)$$$

$$$\left(x, f \left(x \right)\right)=\left(\sqrt{3},-9\right)\approx \left(1.73205080756888,-9\right)$$$

Intervals of Increase

$$$\left(- \sqrt{3}, 0\right) \cup \left(\sqrt{3}, \infty\right)\approx \left(-1.73205080756888, 0\right) \cup \left(1.73205080756888, \infty\right)$$$

Intervals of Decrease

$$$\left(-\infty, - \sqrt{3}\right) \cup \left(0, \sqrt{3}\right)\approx \left(-\infty, -1.73205080756888\right) \cup \left(0, 1.73205080756888\right)$$$

Local Minima

$$$\left(x, f \left(x \right)\right)=\left(- \sqrt{3},-9\right)\approx \left(-1.73205080756888,-9\right)$$$

$$$\left(x, f \left(x \right)\right)=\left(\sqrt{3},-9\right)\approx \left(1.73205080756888,-9\right)$$$

Local Maxima

$$$\left(x, f \left(x \right)\right)=\left(0,0\right)$$$

Global (Absolute) Minima and Maxima

For global minima and maxima, see extrema calculator.

Inflection Points

$$$\left(x, f \left(x \right)\right)=\left(-1,-5\right)$$$

$$$\left(x, f \left(x \right)\right)=\left(1,-5\right)$$$

Concave upward on

$$$\left(-\infty, -1\right) \cup \left(1, \infty\right)$$$

Concave downward on

$$$\left(-1, 1\right)$$$

Derivative

For derivative, see derivative calculator.

Integral

For integral, see integral calculator.

Asymptotes

For asymptotes, see asymptote calculator.

Limit

For limit, see limit calculator.

Taylor Polynomial

For Taylor polynomial, see taylor polynomial calculator.

Graph

For graph, see graphing calculator.


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