http://math-utilities.com/ - A website for frequently used utilities(factorization, remainder, prime check, real roots of polynomials, etc. )

Hi Brilliant folks,

I made a website http://math-utilities.com/, for the sake of this community. Feel free to head over to that page, and make use of it. I love this problem solvers community and felt its my bit to help others along their journey.
Thanks a lot! Any cheers and blessings are much appreciated.

Easy Math Editor

This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.

When posting on Brilliant:

Use the emojis to react to an explanation, whether you're congratulating a job well done , or just really confused .
Ask specific questions about the challenge or the steps in somebody's explanation. Well-posed questions can add a lot to the discussion, but posting "I don't understand!" doesn't help anyone.
Try to contribute something new to the discussion, whether it is an extension, generalization or other idea related to the challenge.
Stay on topic — we're all here to learn more about math and science, not to hear about your favorite get-rich-quick scheme or current world events.

Markdown	Appears as
`italics` or `_italics_`	italics
`bold` or `__bold__`	bold
- bulleted - list	bulleted list
1. numbered 2. list	numbered list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1 paragraph 2	paragraph 1 paragraph 2
`[example link](https://brilliant.org)`	example link
`> This is a quote`	This is a quote
# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"	# I indented these lines # 4 spaces, and now they show # up as a code block. print "hello world"

Math	Appears as
Remember to wrap math in `$` ... `$` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$

Comments

Nice Code.Well Done!!!!!!!!!!!!!!!!!!!!!!!!

Sumukh Bansal - 3 years, 6 months ago

Thank you. Thumbs up :)

Siva Bathula - 3 years, 6 months ago

Neat website!

(25^27^29)mod1000 [works 99% of the time]

Why do you think that this function does not always work?

Polynomial equation solver(real roots only). Uses biection method.

What if there are multiple real roots between the "Start" and "End"?

Pi Han Goh - 3 years, 6 months ago

The remainder finding algorithm fails in certain cases. I am not yet sure if it is closer to 100% but I have improved it to cut down some border cases. The polynomial eq. solver gives all real roots between Start and End. Thanks a lot for the neat comment! Looking forward for more positive feedback.

Siva Bathula - 3 years, 6 months ago

Your "bisection method" section might be flawed.

I've submitted 1,3,3,1 for the coefficients, and the range between -10 and 10.

The answer spits out -1.007937, but it should be just -1 (with a multiplicity of 3).

Plus, you might want to add a function to find the multiplicity of the roots.

Your "Cubic equation solver" might be flawed as well.

I've submitted 1,3,3,1 for the coefficients as well, and it outputs: NaN for all x1, x2, x3.

Your GCD and LCM are flawed too.

If I submit "-2, -4" in GCD, it should spit out 2, not -2.

If I submit "-2, -1, -3" in LCM, it should spit out 6, not -6.

Pi Han Goh - 3 years, 6 months ago

@Pi Han Goh – Yeah, I was too fast to commit, without checking all the possibilities.

Siva Bathula - 3 years, 6 months ago

@Siva Bathula Good work!

Thanks for it.

Ankit Kumar Jain - 3 years, 6 months ago

Nice website!

Munem Shahriar - 3 years, 6 months ago

Good website

Rajyawardhan Singh - 3 years, 6 months ago

Will you please send me ur email address. I have to send you some solutions.

Ayush Kumar - 3 years, 6 months ago

How to find last three digits of 7^999 without using Euler's function or by using it also. Will it be true for all primes like 13^999 or any other. Please let me know it. And about this website, it is a good one.

Ayush Kumar - 3 years, 6 months ago

Great!

Nick Yavorski - 2 years, 11 months ago

How to get PDF of functional equations book by BJ Venkatachala

Ayush Kumar - 3 years, 6 months ago

It's pdf is not available

Rajyawardhan Singh - 3 years, 6 months ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$