olemus
asendama käsitlusobjekte neile lähedaste, kuid lihtsamatega
Wiktionary, verb:
1. (transitive, intransitive) to estimate
I approximated the value of pi by taking 22 divided by 7
2. (transitive) to come near to; to approach

näiteid
irratsionaalarve asendama neile lähedaste ratsionaalarvudega, Maa tegelikku kuju asendama keraga, keerukat signaali asendama sinusoididega
= replace irrational numbers with rational numbers close to them, replace the real shape of the Earth with a sphere, replace a complex signal with sinusoids

vt ka
- lähendus; lähend