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In mathematics, the concept of sign originates from the property of every real number being either positive or negative or zero. Depending on local conventions, zero is either considered as being neither a positive, nor a negative number (having no sign, or a specific sign of its own), or as belonging to both, negative and positive numbers (having both signs). If not specifically mentioned this article adheres to the first convention. In some contexts it makes sense to consider a signed zero, e.g., in floating point representations of real numbers within computers. The phrase "change of sign" is associated throughout mathematics and physics to generate the additive inverse (negation, or multiplication by −1) of any object that allows for this construction, and is not restricted to real numbers. It applies among other objects to vectors, matrices, and complex numbers, which are not prescribed to be only either positive, negative, or zero. The word "sign" is also often used to indicate other binary aspects of mathematical objects that resemble positivity and negativity, such as odd and even (sign of a permutation), sense of orientation or rotation (cw/ccw), one sided limits, and others, below.

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    NSW My de-facto and I spent 6 months ironing out an agreement and both signed the documents for the Family Court. The Registrar knocked it back twice.

    My de-facto and I spent 6 months ironing out an agreement and both signed the documents for the Family Court. The Registrar knocked it back and we amended the settlement with an agreed increase in cash which we both signed. The same deputy registrar knocked it back again. It is up for a Judicial...
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    NSW Ncat Member altering respondents Signed Affidavits and making no mention of it in decision. Is this legal?

    Hi my question is dose an NCAT member have a legal right and under what act or section to alter the written submitted evidence in the form of affidavits of the respondents that by doing so changed the whole meaning of the documents even though they were signed affidavits witnessed by there...
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    VIC Signed Employment Contract - No longer want job.

    Hi, hoping someone might be able to help. I was offered a new ongoing position which I accepted and signed an employment contract. However I no longer want the job due to a change in my circumstances. Am I obligated to start the new position? Are there any potential legal implications or...
  4. uday463

    Student Visa to TSS482 Visa - Signed contract to pay VISA expenses

    Dear sir, I am an international student with 12+ years of experience in cybersecurity. I got a job to work in an IT company and signed a contract saying that if I leave the job then I have to pay all the visa expenses raised for the TSS482 visa. I am leaving this job because my visa still not...
  5. D

    Vendor hasn't signed the contract, oral contract in place?

    The vendor has agreed to sale of property 3 weeks ago. The buyer signed the contract on second day of agreement and also has written correspondence via text a week later about vendor agreeing to payment of 10% deposit and has contacted a solicitor for further proceedings. The agent also...
  6. D

    QLD Is there a possibility to stop signed contract

    It is past 5 day cooling off just need to sign release form but cannot until I finish enforced quarantine, had hardship and stress for past 2 years and making bad decisions. What I’m asking are there anything I can do to rescind without incurring too much cost??? Thankyou Doreen
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    NSW How valid is a signed contract if it was misrepresented to the people who signed it?

    My strata AGM was held on Thurs, and there was a motion to renew a buliding caretaker contract for 5 years. I did some research beforehand and found out the price in the contract is almost 3x what other similar apartments are paying. At the meeting, only 4 owners out of the 116 showed up. I...
  8. B

    VIC Consent Orders made but not signed by Registrar of FCA

    I guess this is predominately an FCA procedural question re: property/financial orders. I've been separated from my ex for 30 months and we have a 4 year old daughter. It is a small property pool. My ex lives in the family home with our daughter and I rent. There are no parenting orders as yet...
  9. BrokeGirl7

    Relocating child abroad with consent order

    There's been a change since my previous post. My ex husband has unexpectedly signed a consent order my lawyer wrote 18 months ago. This gives me sole parenting responsibility and him visitation for 7 weeks per year in the school holidays. The order also states that I can leave NSW (I already...