I'm a PhD student at MIT. Ask me anything!

[yuyuthecat]

hey yyo waddup buddies

 

[xolp3000]

Eh, gotta quick qns. Was just doing some simple Matlab stuff.

Was trying to do a simple program to calculate Celsius to Fahrenheit.

This is what I got below

clc;
C=input('Enter Temperature in Celsius ','s');
while ~isempty(C)
C=str2num(C);
disp(['Cesius to Fahrenheit = ',num2str(C.*9/5+32)]);
C=input('Enter Temperature in Celsius ','s');
end

Just wondering, is there any way of not using str2num and num2str when doing this ?



Celsius to Fahrenheit equation: (C*9/5+32)

use input without the 's' argument to get numeric input.

I also prefer fprintf to num2str, cause you dont have to worry that much about concatenation. But both are functionally identical. I prefer to use break to exit an infinite while loop in this case, cause I can condense the two input statements into a single line while preserving the same functionality.

clear;clc
while true
    C=input('Input ');
    if isempty(C), break, end
    fprintf('Output %.1f\n',C.*9/5+32);
end

 

[xolp3000]

TS, wat wind fall?

Haha, i cant say, not yet.

 

[xolp3000]

Engineering courses should have introductory Matlab as a module. Matlab is quite easy to pick the basics. Think Matrix (not the movie) ....

ok lah, matlab is pretty good to pick up basics. there are also good built in libraries for equation solving, linear algebra, statistics, systems of nonstiff and stiff odes, optimization and other numerical algorithms built in, which makes it a quick and dirty tool.

but for some operations it can be godawful slow. win some lose some...

 

[xolp3000]

Quick, buy a Lange!

if you know me enough, you know that im very against jewellery or branded goods. for me to buy something, it must have a measurable utility.

haha, when i have excess cash ill spend on stuff thats practical lah, not on jewellery or branded goods. last time in singapore, i would spend on recording studio equipment or on my car.

now, haha, grad student liao, no time, whatever little money i have i spend on vacations lor...

 

[xolp3000]

hey yyo waddup buddies

lolol how are you yuyu?

still surviving the bitter cold in newfoundland?

 

[yuyuthecat]

if you know me enough, you know that im very against jewellery or branded goods. for me to buy something, it must have a measurable utility.

haha, when i have excess cash ill spend on stuff thats practical lah, not on jewellery or branded goods. last time in singapore, i would spend on recording studio equipment or on my car.

now, haha, grad student liao, no time, whatever little money i have i spend on vacations lor...

why u so smart?

lolol how are you yuyu?

still surviving the bitter cold in newfoundland?

super windy but it hasnt snowed yet.

did it start snowing at your area yet?

 

[deepbluewater]

yuyu.....u nv giv ur bf surprises ah. hahaha =X

 

[yuyuthecat]

yuyu.....u nv giv ur bf surprises ah. hahaha =X

what surprise to give?

that day we just fight.. hehehe

why u so late no sleep?

 

[deepbluewater]

what surprise to give?

that day we just fight.. hehehe

why u so late no sleep?

Becos of u loh still got who.

 

[livinginanavatar]

Not sure if this is related, but has the cure for cancer been found?

It seems to me if it has been found, some authorities are restricting a public release bcos they can make more money not releasing it.

 

[$ingaporean]

Today I'm staying home to get some work done, rather than going outside.

The stormy weather today, very windy and snowy...

Is this view from your apartment?

Nice view u have.

 

[xolp3000]

why u so smart?



super windy but it hasnt snowed yet.

did it start snowing at your area yet?

no lah im not smart lor...

yes it snowed. blizzardy on sunday...

 

[xolp3000]

Not sure if this is related, but has the cure for cancer been found?

It seems to me if it has been found, some authorities are restricting a public release bcos they can make more money not releasing it.

Cancer is not a single disease. So its very unlikely that a general cure for cancer will be found.

Nope, if people found a real cure for cancer, they'd patent it and make a heck of a lot of money selling the cure to people. But as I said, its very very unlikely that a single cure for cancer will be found.

 

[xolp3000]

Is this view from your apartment?

Nice view u have.

Its not the best view of the building, but I think its pretty nice!

Can see lightning

and stars

 

[Mach3.2]

if you know me enough, you know that im very against jewellery or branded goods. for me to buy something, it must have a measurable utility.

haha, when i have excess cash ill spend on stuff thats practical lah, not on jewellery or branded goods. last time in singapore, i would spend on recording studio equipment or on my car.

now, haha, grad student liao, no time, whatever little money i have i spend on vacations lor...

Which means more pictures liao, this time round go where?

 

[xolp3000]

Which means more pictures liao, this time round go where?

Dunno. Next year I will be posted as a consultant from the department to two companies, for two months each. Basically you go there to solve a problem that the company has.

Flights will be paid for by the department, and the department typically pays for reasonable flights to your destination. So people typically take 1-2 weeks off before to go somewhere nice before starting their consultancy gig. I'm planning to take 1 week off before, 1 week off between the two companies, and 1 week off after.

But have to wait till the department does the assignment lah. Based on where I get posted to, I'll plan lah. I hear that on the table are Maryland, Illinois for US based firms, and England and Ireland for international postings. And most people will get one local one international posting lah...

I should have news next week!

 

[$ingaporean]

Its not the best view of the building, but I think its pretty nice!

Can see lightning

and stars

Beautiful. U r a blessed man.

 

[xolp3000]

Beautiful. U r a blessed man.

Thanks, its a nice view lah, but i just dont like sharing an apartment with others. Prior to this I used to stay alone in a studio apartment. Next year I will be posted out of Boston, but when I return I'll be looking for a studio.

I think I'm just too used to living alone liao. Got too used to living alone in Singapore and in my first year here!

 

[xolp3000]

last photo on a cloudy night.

theres only one way I can take a photo out my window though, cause the window doesnt open fully, probably to prevent suicide in the hi-rise. But yeah, theres no way for me to set up a tripod, and I have to rest the camera on the ledge.