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reduce

Reduce is a general-purpose computer algebra system geared towards applications in physics.
The development of the Reduce computer algebra system was started in the 1960s by Anthony C. Hearn. Since then, many scientists from all over the world have contributed to its development under his direction.
Reduce is written entirely in its own LISP dialect called Portable Standard Lisp, expressed in an ALGOL-like syntax called RLISP. The latter is used as a basis for Reduce's user-level language.
Implementations of Reduce are available on most variants of Unix, Linux, Microsoft Windows, or Apple Macintosh systems by using an underlying Portable Standard Lisp or Codemist Standard LISP implementation. It has also been translated into Julia.Reduce was open sourced in December 2008 and is available for free under a modified BSD license on SourceForge. Previously it had cost $695.

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  1. ridgerunner

    Will switch to unvented HW cylinder reduce shower performance

    Hi, am getting our bathroom updated and local company suggested ditching our traditional attic CW tank/vented cylinder and pump for the shower and install an unvented pressurised HW cylinder instead. We have been told that this will not lead to a drop in effective pressure from the shower. Is...
  2. S

    Can increase and reduce

    Hi. Homeowner with some knowledge of plumbing just to fix toilet taps etc. I need some advice please if anyone can help. So I can use a 4 port manifold to get feeds to outside tap, the dishwasher and the washing machine plus the kitchen sink tap. Can go from 15mm pipe increase to 22mm...
  3. F

    32 Ideal Vogue Max - reduce pump speed? (noisy expanding pipes)

    Hello all, At the start of the year I had a 32 Ideal Vogue Max fitted and all was well, it's working fine. Problem is, I was getting floors done at the same time so I had a very limited time to notch out / felt between the pipes & joists. I thought I got them all but, I didnt and the noise is...
  4. J

    Soil stack reduction

    Can I go from a four inch drain pipe then reduce the soil stack to 3 inches(just under the subfloor below the bathroom floor) then go back to four inch in the attic - above the bathroom? I need 1 inch of room for a 30 by 60 tub - the soil stack is pvc and I need to reduce it to 3 inches in the...
  5. M

    Saying Hello from Durham

    I used to use the forum many years ago and so pleased it is still going strong.
  6. CorgiDirect

    Reduce boiler breakdowns with ADEY Product from CORGI direct

    Reduce boiler breakdowns. Magnetite is the number one contributor to heating breakdowns. Every day corrosion occurs within a heating system. If left untreated, this builds up magnetite causing cold spots on radiators, making heating inefficient https://corgi-direct.com/adey-18152-0000
  7. M

    Aqualisa Quartz shower - reduce pressure and mild splutters

    We have an Aqualisa Quartz shower that was installed three years ago. Recently, the pressure seems to be lower than it used to be, and you can almost feel it starting to splutter. We descaled the shower head and have also followed advice on the Aqualisa FAQs to run the shower cold and gradually...
  8. P

    Best option to reduce high water pressure - plumber and PRVs vs. water company?

    Hi (again!) Following on from this thread.... https://www.plumbersforums.net/threads/under-pressure-dum-d-d-dum-dum-options-for-high-water-pressure.122904/ I hope you don't mind but I thought I'd start a new one as Dwr Cymru could turn up next week so really want to decide what's best and...
  9. H

    How to join and reduce pvc push pipe to flexible hose

    Hi everyone, new to the forum as desperately seeking advice on the sink that has been the bane of my life for several months now! We live on a boat so it isn't the usual sink set up. The sink waste just joins to a short length of plastic hose that leads to the outside of the boat. I put in a...
  10. siricosm

    How to reduce corrosion in vented heating systems

    Some vented heating systems seem to sludge up, and yet other remain remain remarkably clean after many years service. Why? Corrosion is caused by oxygen. Eliminating leaks and inhibitor helps, but the F&E tank is open to the air, so oxygen can freely get in there. Is it possible to design a...
  11. F

    Reduce the power of gas burner by lowering the motor rpm

    Hey guys ! We have a big industrial boiler (installed to provide heating for 80 apartments) which comes with a natural gas burner. The burner has a 4KW 3000RPM motor which provides the air flow to the burner, is it possible to replace the motor with a 1500RPM motor to reduce the heat output of...
  12. P

    Reduce Boiler Vibration?

    I have a new boiler in my loft. It's attached to the outside wall of the house. You can hear vibrations when it is on from 2 floors down in the living room. Is it possible to add dampners to the back of the boiler to reduce vibration down the side of the house? Are there other solutions?
  13. Inverness

    40mm waste to reduce 22mm

    is there any way I can reduce 40 mm waste pipe to 22mm connection?..
  14. C

    TRV and Combi Boiler - Reduce Energy Costs and Settings

    Evening all Newbie question, so apologies if this has been posted elswehere. I'm attempting to make my rented flat more energy efficient and reduce costs throughout the winter months. The radiators are all fitted with TRV's (excluding the bathroom). There is a Vaillant combi boiler and no room...
  15. D

    Unable to reduce Old grey waste pipe to 32mm

    Hi all, Bit of a novice with piping! I had to move my washing machine, and the new location has old grey waste pipe o/d 40mm, I/d about 36mm. I'm trying to reduce this to 32mm so I can hook up my 32mm drain waste to it. I bought a 40mm-32mm reducer and it's won't fit in. Any advice as to the...
  16. S

    Reduce length of copper pipe

    Hi How do you reduce the length of copper pipe by less than 10 mm when you cannot get an junior hacksaw in.
  17. M

    Isolation valves - saving water

    I am looking to save water - primarily by adding after market products to my shower and taps to reduce flow rate. The water companies offer many products to reduce flow rate on visible pipework but my plumbing work has isolation valves on every pipe before every tap. Is there any reason why I...
  18. M

    reducing down for soil vent

    With an internal stack that needs venting through the roof, it is usual to reduce down after the last 4inch branch in the pipe that goes in an upstairs toilet. What size do you usually reduce down to to take the soil pipe out through the roof? Think I have seen 3inch before do the readily sell...
  19. A

    Can a shower valve flow regulator reduce pressure?

    Hi, I recently converted from a gravity fed system to a combi. I have a manual mixer shower that has now developed a dripping shower head when the shower is turned off which I'm assuming is due to the increased pressure (the hot and cold pipes to the shower run through the loft and then down to...
  20. M

    Bath and basin waste combined on new build

    Hi if combining a bath and basin waste on a new build should you really run 2 inch and reduce to 1.5 inch after the tee to the basin?
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