Memories Tools

US Auctions Australian Auctions Austrian Auctions Belgian Auctions Canadian Auctions French Auctions German Auctions Irish Auctions Italian Auctions Dutch Auctions Spanish Auctions Swiss Auctions GB Auctions

Best Match Items Ending First Newly-Listed Items First Price + Shipping: Lowest First Price + Shipping: Highest First

Making Memories Blue Slice Scrapbooking Tool Kit 30949 $12.99 Time Remaining: 4d 13h 57m Buy It Now for only: $12.99

We R Memory Keepers SEW EASY tool and three piercing heads $1.75 (3 Bids) Time Remaining: 58m

3 Creative Memories Bag Small Tools $6.51 (4 Bids) Time Remaining: 1d 8m

Making Memories Tools Paper PIERCER Deluxe $3.25 Time Remaining: 24d 17h 4m Buy It Now for only: $3.25

Making Memories Punch Tool Set for ScrapBooking $9.99 Time Remaining: 1d 3h 32m

We R Memory Keepers Sew Easy Piercing Mat Tools Set $34.00 Time Remaining: 11d 20h 7m Buy It Now for only: $34.00

Creative Memories Tote Supplies Tools Paper Square Makers Stickers $24.99 Time Remaining: 1d 12h 2m

MAKING MEMORIES TOOLS PAPER AND RIBBON SLOT PUNCH TOOL $6.97 Time Remaining: 18d 13h 52m Buy It Now for only: $6.97

Creative Memories Scrapbooking Tools $30.00 Time Remaining: 1d 20h 50m

We R Memory Keepers Sew Ribbon Tool Set $88.34 Time Remaining: 27d 16h 22m Buy It Now for only: $88.34

Making Memories TOOL KIT 18 pieces NEW $9.99 Time Remaining: 1d 21h 17m

Creative Memories Multipurpose Tool and Clips Never used w box $9.99 Time Remaining: 2d 1h 23m

Making Memories Designer Tool Kit 29056 $11.95 Time Remaining: 29d 17h 33m Buy It Now for only: $11.95

Making Memories 15 Piece Slice Tool Kit $17.00 Time Remaining: 2d 15h 34m Buy It Now for only: $23.99

NIP Creative Memories Multipurpose Tool Clips $17.99 Time Remaining: 25d 20h 42m Buy It Now for only: $17.99

We R Memory Keepers Sew Easy lot tool plus 3 heads cross zig zag scallop $13.95 Time Remaining: 2d 23h 8m Buy It Now for only: $15.49

We R Memory Keepers Brad Setter Piercing Tool $5.45 Time Remaining: 9d 19h 55m Buy It Now for only: $5.45

CREATIVE MEMORIES MULTIPURPOSE TOOL CLIPS NEW IN BOX $3.23 Time Remaining: 2d 23h 28m

MAKING MEMORIES DETAILS TOOLS TWEEZERS $4.95 Time Remaining: 24d 4h 28m Buy It Now for only: $4.95

Lot of scrapbooking toolsNIB Creative Memories Personal TrimmerScrappers Floss $15.50 Time Remaining: 3d 13h 28m

Creative Memories Cropping Tools $11.62 Time Remaining: 9d 22h 42m Buy It Now for only: $11.62

Creative Memories Scrapbooking tools $10.95 Time Remaining: 3d 14h 35m

Making Memories Eyelet Setter Hole Punch Embossing Tool $7.25 Time Remaining: 3d 20h 23m

We R Memory Keepers Sew Stamper Tool Set NEW $32.89 Time Remaining: 12d 21h 13m Buy It Now for only: $32.89

CREATIVE MEMORIES MAKERS POCKET PURPLE GREAT ADDITION TO YOUR SCRAPBOOKING TOOLS $4.99 Time Remaining: 4d 13m

Making Memories BLUE Slice Tool Kit NEW $22.95 Time Remaining: 10d 5h 45m Buy It Now for only: $22.95

CREATIVE MEMORIES LARGE TOOL TOTE LKN OPENED PACKAGE $20.00 Time Remaining: 4d 12h 54m

We R Memory Keepers Sew Ribbon Tool + BONUS RIBBONS Scrapbook Card OPTIONS $13.34 Time Remaining: 6d 1h 16m Buy It Now for only: $13.34

Creative Memories CUTTING SYSTEM BLUE CIRCLES TEMPLATES ASSORTED SIZES SALE $14.99 Time Remaining: 4d 14h 21m

Making Memories Pink Tool Kit for Slice Machine 33993 $16.99 Time Remaining: 27d 1h 54m Buy It Now for only: $16.99

Creative Memories CUTTING SYSTEM PERSONAL TRIMMER WITH STORAGE DRAWER SALE $10.99 Time Remaining: 4d 14h 23m

Making Memories Details Tool Kit 6 packages of embellishments ALL BRAND NEW $14.99 Time Remaining: 3d 20h 13m Buy It Now for only: $14.99

MAKING MEMORIES TOOL KITSCRAPBOOKINGCARD MAKING ETC $20.42 Time Remaining: 4d 14h 39m

We R Memory Keepers Pink Mini Tool Kit Brad Setter Piercing Tool Magnetic Mat $27.50 Time Remaining: 4d 14h 48m

Cinch Bindery Tool V2 We R Memory Keepers $87.99 Time Remaining: 9d 12h 52m Buy It Now for only: $87.99

Creative Memories Scrapbooking Kit mixed lot stickers cutters tools totes $25.00 (1 Bid) Time Remaining: 4d 19h 26m

Making Memories Paper Ribbon Slot Punch Tool Set $7.99 Time Remaining: 16d 22h 59m Buy It Now for only: $7.99

Making Memories Slice Craft Foam Sheets 9 x 12 PKG 10 Neutral Colours 34907 $2.00 Time Remaining: 5d 13h 6m

We R Memory Keepers Precision Tweezer Crafters Tool $6.99 Time Remaining: 15d 4h 3m Buy It Now for only: $6.99

Brand New Creative Memories Tool Set $65.00 Time Remaining: 5d 14h 31m Buy It Now for only: $80.00

We R Memory Keepers Crop A Dile Corner Chomper Tool 25 5 Rounded $19.50 Time Remaining: 22d 21h 3m Buy It Now for only: $19.50

Making Memories Tool Kit II $7.00 Time Remaining: 5d 20h 51m

Pink CROP A DILE PLUS CASE Tool Storage Eyelets We R Memory Keepers $35.99 Time Remaining: 11d 16h 20m Buy It Now for only: $35.99

Creative Memories Stickers Tools also 5 die cut Black $0.98 Time Remaining: 5d 23h 46m

creative memories Multipurpose tool 2 clips NEW $2.30 (3 Bids) Time Remaining: 6d 16m

PINK SPATULA SLICE Machine New Making Memories Tool $4.84 Time Remaining: 15h 58m Buy It Now for only: $4.84

creative memories Photo tape tool $0.99 (1 Bid) Time Remaining: 6d 19m

NIP Creative Memories Paper Edger Tool $8.75 Time Remaining: 18d 14h 18m Buy It Now for only: $8.75

creative memories tool Please see Photo borders corners $0.99 Time Remaining: 6d 37m

Making Memories PINK Slice ELITE Tool Kit NEW $28.95 Time Remaining: 15d 45m Buy It Now for only: $28.95

creative memories tool Please see Photo Storeylines $0.99 Time Remaining: 6d 39m

Paper Ribbon Slot Punch Tool Making Memories $11.99 Time Remaining: 1d 22h Buy It Now for only: $11.99

creative memories tool Please see Photo Storeylines shapes $0.99 Time Remaining: 6d 40m

We R Memory Keepers Sweetheart Distressing Tool With Blade 25X2 $4.67 Time Remaining: 9d 19h 55m Buy It Now for only: $4.67

creative memories tool Please see Photo page protectors 12 x 12 $0.99 (1 Bid) Time Remaining: 6d 43m

creative memories tool Please see Photo paper punch $0.99 Time Remaining: 6d 1h 2m

Making Memories 15pc Pink Slice Tool Kit 33993 $16.99 Time Remaining: 11d 20h 31m Buy It Now for only: $16.99

creative memories tool Please see Photo paper punch fish butterfly flower frog $0.99 Time Remaining: 6d 1h 6m

We R Memory Keepers Pink Mini Tool Kit Brad Setter Piercing Tool Magnetic Mat $29.88 Time Remaining: 8d 10h 43m Buy It Now for only: $29.88

Creative Memories Creative Cuts Tool $19.99 Time Remaining: 6d 11h 15m Buy It Now for only: $22.00

We R Memory Keepers Crop A Dile Eight Tools In One $18.99 Time Remaining: 18d 17h 13m Buy It Now for only: $18.99

MAKING MEMORIES 10 PC TOOL KIT FOR SCRAPBOOKING PAPER CRAFTS ISLET SETTING $6.00 Time Remaining: 6d 12h 16m

Making Memories Slice Replacement Blades Blue Item 30756 5 blades and Tool $8.95 Time Remaining: 13d 25m Buy It Now for only: $8.95

Making Memories Tag Maker Tool $3.99 Time Remaining: 6d 17h 13m

We R Memory Keepers SewEasy STITCH PIERCER TOOL Large Small Heads OPTIONS $3.63 Time Remaining: 8d 15h Buy It Now for only: $3.63

creative memories tool Please see Photo 4 shapes $0.99 Time Remaining: 6d 23h 46m

creative memories tool Please see Photo 4 shapes $0.99 Time Remaining: 6d 23h 48m

NEW SLOT PUNCHING TOOL SET BY MAKING MEMORIES 6 PC SET $7.49 Time Remaining: 7d 3h 21m Buy It Now for only: $7.49

creative memories tool Please see Photo pen set $0.99 Time Remaining: 6d 23h 49m

Making Memories Designer Series Tool Kit NEW DD70 $12.99 Time Remaining: 14d 15h 42m Buy It Now for only: $12.99

We R Memory Keepers Sew Ribbon Tool Stencil Flower $14.74 Time Remaining: 2d 1h 29m

We R Memory Keepers Rub On Crafters Metal Roller Paddle Tool Spring Loaded Tip $5.99 Time Remaining: 20d 14h 45m Buy It Now for only: $5.99

We R Memory Keepers Sew Ribbon Tool Stencil Scallop $14.74 Time Remaining: 2d 2h 31m

NEW RADIUS Corner Chomper Rounder Tool 1 8 3 8 We R Memory Keepers $22.99 Time Remaining: 11d 15h 7m Buy It Now for only: $22.99

We R Memory Keepers Sew Ribbon Tool Stencil Leaf LL347521 $9.50 (5 Bids) Time Remaining: 3d 2h 55m

is there an easy arithmetic way to calculate the sin 13 or cos 26. Without any technical tools (calculator)?

i want to be able to calculate a good estimate, like 3 digits behind comma. without tools., just private memory calculations.
these values must have been constructed once. I hope there is an easier way than MacLaruin's or Taylor's formula to estimate it.

Not really. 13 is an odd-ball number, a prime in fact, which makes some of they typical patterns and relationships somewhat difficult to adapt.

Recall the trigonometric relationships:
sin 2x = 2 sin x cos x, among all the others

Its possible to convert one expression into another of a different angle value. But you would be left with the same problem there. Some angles, if you can manage to get there, like 0, 30, 45, 60, 90 are easy to memorize and simply substitute.

Then, if need be, and this is hardly mathematically sound... but if you want to draw out a geometric figure of a right triangle... making sure you get the angles right... you could simply measure out and divide the lengths of the sides. The values would only be as accurate as the figure you draw.

There are other alternative routes you could take. In calculus and beyond, we learn of writing trig functions in terms of Eulers constant.
sin x = [ e^ix - e^-ix ] / 2i
for example. But of course, you would have to know the values of e raised to a power which includes imaginary values. Not necessarily a good alternative, as you would still have to rely on a calculator, a table, or yet another relationship.

Also, in calculus, we learn of Taylor Expansions. We could express the trig functions in terms of an infinite series, where each term follows a simple pattern. Of course you cannot evaluate an infinite series in your head... but you could limit yourself to a sufficient number of terms to guarantee some degree of accuracy. This is actually how calculators solve for trig values... as quickly as electricity.

Whether you use the Eulers expressions or strictly the trig functions, simply having a pre-written list of values would be helpful... thats what they used to do a long time ago (along with logarithm tables, they had trig tables). But those tables are only accurate to so many digits... and only have specific values listed as functional inputs.

But of course, the trigonometric relationships would fill in many of the gaps. These tables only need to include sine, from 0 to 45. All other integer angles from 46 to 360, for each of the other trig functions, have relatively simple relationships to sine from 0 to 45.

Then, Im sure, you could construct values using an iteration method. Given a relationship, you could reiterate it to solve for increasing accuracy. I cant think of a practical method/example off the top of my head at the moment.

Not that this would help, or would be any more practical, but you could rewrite the trig functions in terms of the hyperbolic trig functions. As necessary.

Regardless of the technique you use, I highly doubt you could get to three significant figures in your head. You would at least rely on the use of pen-paper math.

I would also like to point out that the most practical method, Taylor Expansions, which would probably be the most accurate... and gives you the leeway to get as accurate as you wish to on your own, if youre willing to do the work. This method requires the use of angles in radian measure. Radian measures use the value pi. In your example, 13 and 26 degrees, you would have to convert to radians... and therefore you would be applying technique to irrational values. Most difficult to do in the head.