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Topic: Have calculated these decreases correctly?  (Read 554 times)
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knitknitter
« on: October 06, 2007 02:35:51 AM »

I think that I might be off, but I am not sure, where I made a mistake, even though I used an online calculator.

I am trying to calculate the decreases for the lower half  a sweater sleeve, from the elbow to the first knuckle of my thumb (yes, I want the sleeve to be very long). Are these calculations correct?


At the elbow (where I am now in my knitting) I have 59 stitches

My gauge is:
 5 stitches = 1 inch
7 rows = 1 inch
on 5mm double pointed bamboo

distance from elbow to  first thumb knuckle is about 15 inches



distance around hand (I measure area around thumb nuckles) is 9 inches

So  I have to reduce 2.8 inches or 14 stitches (i.e 2.8 inches x 5 stitches) over 105 rows (i.e 15 inches x 7 rows)

According to the Magic Number Calculator:

    1 st at each end of every 15th row 7 times (105 rows = 14sts)


Total stitches increased/decreased = 14

Stitches increased/decreased each side = 7

Total rows knitted = 105
http://www.getknitting.com/ak_0603mfcalcrslt.aspx

But this does not make sense, because when I calculate the decreases according to the Magic Number calculator, I got this:

60
75
90
105

After Row 105, there are no more rows to decrease. What should I do?
Any advice on how to get this increase/decreasing calculations figured out would be great, as I have had to rip this sweater out countless times because of problems with shaping and I think that I would be a much faster knitter if not for this.
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soozeq
« Reply #1 on: October 06, 2007 06:42:45 AM »

I don't pay attention to rows, just the inches. I usually decrease about every 2 inches and it turns out about right.
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sue
knitknitter
« Reply #2 on: October 06, 2007 07:08:38 AM »

Thanks, Soozeq. But I am trying to understand the math behind this. Is the math correct? I am really bad at shaping and I know that if I am able to figure this out, I would be able to knit more quickly and modify existing patterns more easily.
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soozeq
« Reply #3 on: October 06, 2007 07:47:58 AM »

Well, it seems about right. You have it at decreasing every 15 rows and with 7 rows/inch, that works out to about every 2 inches. That's the factor most patterns use for incs/decs on sleeves.
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sue
eatyerhartout
« Reply #4 on: October 06, 2007 09:34:18 PM »

It looks right to me. I've used those same steps before and it turned out well.
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