fossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 4 months agoConversing with Mathematiciansmander.xyzimagemessage-square10fedilinkarrow-up14arrow-down10
arrow-up14arrow-down1imageConversing with Mathematiciansmander.xyzfossilesque@mander.xyzM to Science Memes@mander.xyzEnglish · 4 months agomessage-square10fedilink
minus-squareDeebster@programming.devlinkfedilinkEnglisharrow-up1·4 months agoWhen all you have is an imaginary hammer, everything looks like a rotation around the imaginary unit circle. Explanation of maths x = -10, i = √-1 so i² = -1 and 10i²=-10
minus-squareMonkderVierte@lemmy.mllinkfedilinkEnglisharrow-up0·4 months agoFound the math but no explanation.
minus-squareJackbyDev@programming.devlinkfedilinkEnglisharrow-up0·4 months agoThe squareroot of 100 is ±10.
minus-squareOozingPositron@feddit.cllinkfedilinkEnglisharrow-up0arrow-down1·4 months agoThe square root is always positive, but you can plug it into the quadratic formula to get the two possible values.
minus-squareShrimpCurler@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up1·4 months agoThere’s no reason to bring the quadratic formula into this. Square roots can be negative, but when talking about the square root it’s normally assumed to be the principal square root, which is the positive one.
minus-squaremexicancartel@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up1·edit-23 months agoNope. To clarify, square roots are the opposite of squaring. Now ask yourself: What is 10² ? What is (-10)² ? If you get the same answer, then they are both the roots of the answer. +10 and -10 then gets together called ±10
When all you have is an imaginary hammer, everything looks like a rotation around the imaginary unit circle.
Explanation of maths
x = -10, i = √-1 so i² = -1 and 10i²=-10
Found the math but no explanation.
The squareroot of 100 is ±10.
The square root is always positive, but you can plug it into the quadratic formula to get the two possible values.
There’s no reason to bring the quadratic formula into this. Square roots can be negative, but when talking about the square root it’s normally assumed to be the principal square root, which is the positive one.
Nope. To clarify, square roots are the opposite of squaring.
Now ask yourself:
What is 10² ?
What is (-10)² ?
If you get the same answer, then they are both the roots of the answer. +10 and -10 then gets together called ±10