I only had flowchart images from the pdf but the code is mine .

Missed the reference .I have written so many posts on stemgeeks and i would not copy paste one flowchart to ruin my reputation in the portal.The code is mine i just took flowchart but missed the reference.And

Trigonometric substitution for integrals with square roots. Yes

sometimes they give squareroots in calculas and make a weird question and i always end of doing mistakes. By big calculation i mean what i find hard and i just started 3rd semester and i know there is

am doing engineering but this still gives me problem sometimes. when doing big calculations sometimes i just do stupid things.

I was unaware of the offline mode, which will be quite useful from now on.