• $\begin{array}{l}series\left(\cos \right(x),x,0,5)\\ \mathrm{>>>}1-\frac{x^2}{2}+\frac{x^4}{\mathrm{24}}+O(x^5)\end{array}$

• $\begin{array}{l}\mathrm{gamma(1)}\\ \mathrm{>>>}1\end{array}$

• $\begin{array}{l}\mathrm{zeta(2)}\\ \mathrm{>>>}1.64493406684823\end{array}$

• $\begin{array}{l}\mathrm{limit(sin(x)/x,x,0)}\\ \mathrm{>>>}1\end{array}$

• $\begin{array}{l}\mathrm{limit(1/x,x,0,\text{'}+\text{'})}\\ \mathrm{>>>}\mathrm{oo}\end{array}$

• $\begin{array}{l}\mathrm{limit(1/x,x,0,\text{'}-\text{'})}\\ \mathrm{>>>}\mathrm{-oo}\end{array}$

• $\begin{array}{l}\int \mathrm{xdx}\\ \mathrm{>>>}0.5*x^2\end{array}$

• $\begin{array}{l}\mathrm{integrate(x,x)}\\ \mathrm{>>>}0.5*x^2\end{array}$

• $\begin{array}{l}\mathrm{integrate(pow(e,-x),x,0,inf)}\\ \mathrm{>>>}1\end{array}$

Repeat the corresponding integral operation.

• $\begin{array}{l}\mathrm{y=ln(x)}\\ \mathrm{y\text{'}(x)}\\ \mathrm{>>>}{x}^{-1}\end{array}$

• $\begin{array}{l}\mathrm{y=ln(x)}\\ \mathrm{y\text{'}\text{'}}\\ \mathrm{>>>}-\frac{1}{x^2}\end{array}$

• $\begin{array}{l}\mathrm{(ln(x))\text{'}}\\ \mathrm{>>>}{x}^{-1}\end{array}$

• $\begin{array}{l}\mathrm{d/dx(ln(x))}\\ \mathrm{>>>}{x}^{-1}\end{array}$

• $\begin{array}{l}\mathrm{diff(ln(x),x,2)}\\ \mathrm{>>>}-\frac{1}{x^2}\end{array}$

• $\begin{array}{l}\mathrm{(y*ln(x))\text{'}\text{'}(x)}\\ \mathrm{>>>}-\frac{y}{x^2}\end{array}$

• $\begin{array}{l}\mathrm{d/dy(y*ln(x))}\\ \mathrm{>>>ln(x)}\end{array}$

• $\begin{array}{l}\mathrm{diff(y*ln(x),x,2)}\\ \mathrm{>>>}-\frac{y}{x^2}\end{array}$