HunterJohnson Posted April 26, 2012 Report Share Posted April 26, 2012 Need some help with the 1st derivative and relative minimum Quote Scion tC SQ BuildiPad mini, lots of fabrication, daily drivenFord Explorer C Pillar Wall Build Just a cheap car to destroy with bass Link to comment Share on other sites More sharing options...
HunterJohnson Posted April 26, 2012 Author Report Share Posted April 26, 2012 Heres the question I cant figure out the last one I've tried 0 and -11 Quote Scion tC SQ BuildiPad mini, lots of fabrication, daily drivenFord Explorer C Pillar Wall Build Just a cheap car to destroy with bass Link to comment Share on other sites More sharing options...
HunterJohnson Posted April 26, 2012 Author Report Share Posted April 26, 2012 I tried NONE too lol! Quote Scion tC SQ BuildiPad mini, lots of fabrication, daily drivenFord Explorer C Pillar Wall Build Just a cheap car to destroy with bass Link to comment Share on other sites More sharing options...
irpirate Posted April 26, 2012 Report Share Posted April 26, 2012 -19 Quote hiiiiiiii2002 4runner - buncha speakers n amps n shit (gone)1994 astro - more stuffzupdate: pretty sure all the pic links in the logs are broken lol. ma slop garb build log16 12's 4th order4runner rebuild in progressclickkk meeeee!!!! 4 18's 6th orderUBL - clickyhttp://www.youtube.com/yyj11589 lots of hater kids here. Pay no attention, they just want 89,000 watt subs for 3.50If you would have put a dc dustcap on it and called it lv your mom, they would all be in love Link to comment Share on other sites More sharing options...
P4killer_ Posted April 26, 2012 Report Share Posted April 26, 2012 (edited) Edit : nvm Edited April 26, 2012 by P4killer_ Quote Setup: 2010 Hyundai Elantra Factory Unit via 4 chan NVX LOC Excessive Amperage "H/O" Alt Xs D3400/ Xs XP3000 Big 3. 2 Runs of +, 2 Runs of - DD M3b and 2 12" AQ HDC4s Link to comment Share on other sites More sharing options...
HunterJohnson Posted April 26, 2012 Author Report Share Posted April 26, 2012 -19 thanks howd you get here? Quote Scion tC SQ BuildiPad mini, lots of fabrication, daily drivenFord Explorer C Pillar Wall Build Just a cheap car to destroy with bass Link to comment Share on other sites More sharing options...
P4killer_ Posted April 26, 2012 Report Share Posted April 26, 2012 Did you try graphing the function... That'd be my first step. But w.o digging out my notes and refreshing my self idk .. Quote Setup: 2010 Hyundai Elantra Factory Unit via 4 chan NVX LOC Excessive Amperage "H/O" Alt Xs D3400/ Xs XP3000 Big 3. 2 Runs of +, 2 Runs of - DD M3b and 2 12" AQ HDC4s Link to comment Share on other sites More sharing options...
HunterJohnson Posted April 26, 2012 Author Report Share Posted April 26, 2012 Did you try graphing the function... That'd be my first step. But w.o digging out my notes and refreshing my self idk .. graphing it takes too long lol, I just cant figure out wtf to do...It's somewhere in my notes Quote Scion tC SQ BuildiPad mini, lots of fabrication, daily drivenFord Explorer C Pillar Wall Build Just a cheap car to destroy with bass Link to comment Share on other sites More sharing options...
irpirate Posted April 26, 2012 Report Share Posted April 26, 2012 graphing it or solving for f(2) will both work first derivitive gives you the slope of f(x) at x set f'(x) to 0 to find points of inflections, slope of first graph is 0 at point x then from there it's just figuring out if you have an absolute min or max once you find out where your inflection points are you put those back into f(x) it's been a while since i've done this so sorry if the explanation sucks lol Quote hiiiiiiii2002 4runner - buncha speakers n amps n shit (gone)1994 astro - more stuffzupdate: pretty sure all the pic links in the logs are broken lol. ma slop garb build log16 12's 4th order4runner rebuild in progressclickkk meeeee!!!! 4 18's 6th orderUBL - clickyhttp://www.youtube.com/yyj11589 lots of hater kids here. Pay no attention, they just want 89,000 watt subs for 3.50If you would have put a dc dustcap on it and called it lv your mom, they would all be in love Link to comment Share on other sites More sharing options...
KickerKid58 Posted April 26, 2012 Report Share Posted April 26, 2012 Take first derivative and set equal to zero.. if u got the x value right u should just have to plug it into the equation and get a y value. But I'm drunk tired Nd failing calc 3 good luck bro hahaha Quote 06 Jeep Grand Cherokee 2 DC Level4 12" Soundstream TA1.3000d 4 RF Punch 6.5" Components 2 RF Punch 3.5" 2-ways RF Prime 400.4D XS Power XP950 +&-run of XScorpion 1/0 OFC My Civic Build Link to comment Share on other sites More sharing options...
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