Question

this question asks for a number or a calculation.
you can enter whole numbers, negative numbers, or decimal numbers. if you enter a decimal value, be sure to give at least 3 decimal places.
alternatively, you can enter mathematical expressions. some examples:

enter	to get
sqrt(4)	$sqrt{4}=2$
2/(5 - 3)	$\frac{2}{5 - 3}=1$
3^2	$3^{2}=9$
log(100)	$log(100)=2$

note that for functions like log and sqrt, you must use parentheses. \log(100)\ is good, but \log100\ and \log 100\ will not work.
try it here. use the preview button to see how the computer is interpreting what you typed.
enter $\frac{sqrt{5}}{2}$:
enter $\frac{7}{3}$:
enter $\frac{1}{2^{3}-5}$:
enter $log(4)$:

Explanation:

Step1: Calculate $\frac{\sqrt{5}}{2}$

$\frac{\sqrt{5}}{2}\approx\frac{2.236}{2}=1.118$

Step2: Calculate $\frac{7}{3}$

$\frac{7}{3}\approx2.333$

Step3: Calculate $\frac{1}{2^{3}-5}$

First, calculate $2^{3}-5 = 8 - 5=3$. Then $\frac{1}{2^{3}-5}=\frac{1}{3}\approx0.333$

Step4: Calculate $\log(4)$

Assuming base - 10 logarithm, $\log(4)\approx0.602$

Answer:

1.118
2.333
0.333
0.602