# A Little Estimation, A Little Rounding

Yesterday I mentioned a lot of sloppy math. I've decided to write it out for you here, since, while I am not afraid of math, I believe that there are too many fiber artists who are. Really the overwhelming majority of math needed is not any more advanced than basic arithmetic and proportions. I firmly believe that anyone can do it!

Let's go through my warp math step by step. First I think about how long I want my scarf to be. I decided 6 feet, or **72 inches**, since I'm pretty sure I won't want it longer than that. Shorter can be arranged with scissors after the fact ;)

Then I cavalierly decide to estimate my take up at **10%**. Because I'm not married to the scarf coming out exactly 6 feet long, I'm willing to take the risk of not sampling and coming up with a more accurate number.

So to add the extra 10% to my desired 72 inches, I multiply **72 * 1.1 = 79.2**One could also figure the the 10% separately as 7.2, then add it back onto 72, if that process feels more logical.

I'm going to round the 79.2 to **80** to make the rest of the math go easier, and because a little extra never hurt anybody.

I want the option of fringe on the scarf, so I'll add 5 inches to either end, **5 + 5 + 80 =** **90 ****inches**.

There will be two scarves, so **90 * 2 = 180 inches.**

The Jane is fairly short from front beam to back beam, and it gets a good shed even when the** **apron rod is near the shafts, so there won't be much loom waste. Let's figure **20 inches** for loom waste, giving me a total warp length of **200 inches**.

Now I could stop there and measure 200 inches and start winding the warp, but it's easier for me to measure yards. **200 / 36 = ~5.5** (yes, I'm rounding...no I'm not worried about it.)

Then there's one more step before I can really get going. I need to figure out how many ends to wind!

The Jane is 40cm wide, which is approximately **15.75 inches **so I can't weave something wider than that. I plan to use a sett of **18 ends per inch**, so the maximum number of warp ends I can use is **15.75 * 18 = 283.5** (and there is no such thing as half a warp end, so functionally this is 283.)

I took some time with my draft, and for the pattern I want I need a **multiple of 26 + 7**. That means that I could have **(26 * 1) + 7 = 33** ends, or** (26 * 2) + 7 = 59** ends, or **(26**** * 3) + 7 = 85 **ends, and so on.

I want the maximum number of repeats that will fit on my loom, so I'm going to have **(26 * 10) + 7 = 267 warp ends** to wind. I'll actually wind **271 ends** because I'm planning on using a doubled strand on either side as a floating selvedge so I have something super sturdy to crochet over.

Because I have a whole pile of yarn, I'm not too worried about how many cones I'll be using, but if you're planning a project and ordering supplies, you might be. Let's go ahead and figure out how many cones I'll need for my warp.

**271 ends * 5.5 yards/end = 1490.5 yards**

One cone of Euroflax Lace has approximately **630 yards**, so **1490.5 / 630 = 2.4** (rounded). I'll need 3 cones, and I'm hoping that I have enough leftover after warping to crochet with.

*PHEW*

All that work just so I can spend most of the day doing this :)