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Engineering function
IMABS
Returns the absolute value, or modulus, of a complex number.
Rarely usedDifficulty 1450 · AdvancedUsage rank #477 of 520
When to use it
The absolute value (modulus) of a complex number: the distance from the origin.
The shape of it
- Syntax
=IMABS(inumber)
Worked examples
Classic
=IMABS("3+4i") → 5
The 3-4-5 triangle.
Another
=IMABS("5-12i") → 13
Another Pythagorean triple.
Unit
=IMABS("i") → 1
The unit imaginary.
Worth knowing
- Magnitude of an impedance or a phasor.
- Same as SQRT(re^2+im^2).
- Pair with IMARGUMENT for polar form.
Where it goes wrong
- #VALUE! for invalid complex text.
- #NUM! for a bad suffix.
Related
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