Taking introduction to algorithms for computer science this semester and wanted to know if there is a way to calculate lg on scientific calculator? Thank you.
[Math] way to calculate lg on a scientific calculator
calculatorlogarithms
Related Solutions
I don't have that model at hand to check for sure, but I think you can get a numerical approximation of the derivative at a point by graphing the function and using the trace feature with derivative turned on in the settings. Here is the relevant section of the manual, from chapter 8:
Since you are solving for the indefinite integral of a function, you are solving for the anti-derivative. You can plug in the answer you got in any modern scientific calculator using the d/dx function and compare the results.
For example, let's say you are solving for the integral of cos(2x). You think the answer is sin(2x)/2 + C but you are not sure. All what you have to do is first, calculate the original cos(2x) using an arbitrary substitution for x (say 7) so you put cos(2*7) which is going to be ~0.136737
Now you can use the d/dx function of your calculator using the same value for x (notice that the c constant is not important):
d/dx(sin(2x)/2),x=7
your calculator is going to output ~0.136737. Since it is the same result, you did it successfully.
Quick tips:
Whenever you are doing trigonometric calculus. Make absolutely sure that you are using the radian system in your calculator.
If the result of the d/dx function in your calculator is so small, it is going to round it to 0. Watch out for that, you might want to use other numbers for x.
It's actually a life-saver. It's so helpful. My calculator is Casio fx-991ES PLUS for reference.
Best Answer
$lg(x) = \dfrac{\log x}{\log 2}$
where $\log$ is log base anything that is allowed.