/biz/ - Business & Finance

>>18707159
idk i do math rants at times because engineeringfag, but seeing how i basically never even namefag anymore idk

>>17940570
Mathematics is the gateway to all sorts of abilities that some people find, unnatural

>>17491129

100*1.05=105
105*1.05=110.25
110.25*0.90=99.225
so 5% gain two days in a row, then a 10% loss on the third day = 99.225% returns for the three day period

100*1.15=115
115*1.15=132.25
132.25*0.7=92.575
so a 3x leveraged of the same stock in the same three day period (two +15% days, then one -30% day) will return you 92.575%

99.225>92.575

this also fails to take into account how leveraged ETF's readjust their positions at the beginning and end of every trading day, screwing with the returns even more

>>17491085
100*1.05=105
105*1.05=110.25
110.25*0.90=99.225
so 5% gain two days in a row, then a 10% loss= 99.225% returns for the three day period

100*1.15=115
115*1.15=132.25
132.25*0.7=92.575
so a 3x leveraged of the same stock in the same three day period (two +10% days, then one -30% day) will return you 92.575%

99.225>92.575

this also fails to take into account how leveraged ETF's readjust their positions at the beginning and end of every trading day, screwing with the returns even more

>VIIX calls shot up today, DB puts too
>BTC hedge's losses were smaller than those gains
>LCI loses my portfolio an extra 1% today

didnt this happen like one year ago, exactly?
>the pattern is starting to reveal itself

>>14099469
negative divided by a negative is a positive, thats basic shit

>>11874115
calc 4 (aka differential algebra)? or FEA?
or system controls (signal analysis) ? or matrix manipulation?

or was it some high end EE classes?

>>11874118
>ahabraxas
wow that takes me back some years
>drunken_galactus_party.jpg

>>11874125
>>IT'S NOT FAIR WHY DOES EVERYONE ELSE GET THE COOL FOURIER SHIT
you dont want that shit, you can spend 4 hours doing it by hand before realizing you made a mistake at part one, so you gotta start the whole fucking thing all over again

Fourier transforms without a blackbox program to solve them is true torture, literal hell

>>10883851
>probability and statistics
you are like baby

but thank you

t. senior year of Mechanical Engineering undergrad