Videnskabelig notation konvertering
Konverter ethvert nummer til og fra videnskabelig notation.
Resultater opdatere som du skriver.
Om denne regnemaskine
Scientific notation writes a number as a coefficient between 1 and 10 multiplied by a power of ten, and this scientific notation converter turns any value into that form along with E-notation, engineering notation, its order of magnitude, and the plain standard-form number. It also reads scientific input, so you can convert in either direction.
To build the coefficient, the decimal point is moved so a single non-zero digit sits in front of it; the number of places moved becomes the exponent. So 12,345 has its point shifted four places to give 1.2345 × 10⁴, and small numbers use a negative exponent — 0.00045 becomes 4.5 × 10⁻⁴. Engineering notation keeps the exponent to a multiple of three (matching kilo, mega and so on), rewriting 12,345 as 12.345 × 10³, and the order of magnitude is just that power of ten, 4 here.
Scientific notation is how very large and very small quantities are handled in physics, astronomy, chemistry and computing without writing long strings of zeros. Entering a value in E-notation such as 1.2e5 converts it straight back to the standard number 120000.
Ofte stillede spørgsmål
Hvordan skriver man et tal i videnskabelig notation?
Flyt decimalen så et ikke-nulcifret sidder foran det, og derefter gange med 10 til antallet af steder flyttes. 12,345 = 1,2345 × 104.
Hvad er E-notation?
E-notation is how calculators display scientific notation: 1.2345 × 10⁴ is shown as 1.2345e+4, where the number after e is the power of ten.
Hvad er ingeniørnotation?
It is like scientific notation but the exponent is kept to a multiple of three, so it lines up with metric prefixes. 12,345 is written 12.345 × 10³.
Hvad er størrelsen af et antal?
Det er magten af ti i sin videnskabelige notation ~ eksponenten. For 12.345 størrelsesordenen er 4.
Kan jeg konvertere E-notation tilbage til et almindeligt nummer?
Yes. Type a value like 1.2e5 and the converter expands it to the standard form 120000.
Hvordan er meget små tal skrevet i videnskabelig notation?
De bruger en negativ eksponent. 0,00045 bliver 4,5 × 10−4, flytter punktet fire steder til højre.
API! Brug denne regnemaskine fra kode
Kald denne lommeregner som et gratis JSON endpoint! ingen nøgle påkrævet. Send feltværdierne nedenfor som forespørgselsparametre eller JSON. Alt hvad du udelader bruger den samme standard denne side er fyldt med; en ukendt parameter er en 400, aldrig en tavs nul. Læs hele API- dokumenter →
Slutpunkt
GET https://calculator.free/api/v1/scientific-notation/curl
curl "https://calculator.free/api/v1/scientific-notation/?number=12345"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/scientific-notation/?" + new URLSearchParams({
"number": "12345"
}));
const data = await r.json();
console.log(data.results);Resultaterne er skøn for generel vejledning, ikke finansiel, medicinsk eller skattemæssig rådgivning.