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NumberCompose[{c1,…,cn},{u1,…,un}]

returns the quantity c1 u1+…+cn un.

Details
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Basic Examples  
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Properties & Relations  
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NumberCompose

NumberCompose[{c1,…,cn},{u1,…,un}]

returns the quantity c1 u1+…+cn un.

Details

  • The basis {u1,…,un} is typically a list of nonincreasing positive numbers.
  • In NumberCompose[clist,ulist] the length of clist can be smaller than the length of ulist, and then clist is effectively padded with zeros on the left.

Examples

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Basic Examples  (2)

Add different denominations of money:

Add amounts of days, hours, minutes, and seconds to return seconds:

Scope  (1)

Compose exact numbers:

Compose inexact numbers:

Properties & Relations  (4)

The basic operation of NumberDecompose is Dot:

If the list of coefficients is shorter than the list of units, the former is left padded with zeros:

FromDMS is a special case of NumberCompose:

FromDigits with a MixedRadix specification performs a NumberCompose operation:

Wolfram Research (2015), NumberCompose, Wolfram Language function, https://reference.wolfram.com/language/ref/NumberCompose.html.

Text

Wolfram Research (2015), NumberCompose, Wolfram Language function, https://reference.wolfram.com/language/ref/NumberCompose.html.

CMS

Wolfram Language. 2015. "NumberCompose." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/NumberCompose.html.

APA

Wolfram Language. (2015). NumberCompose. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/NumberCompose.html

BibTeX

@misc{reference.wolfram_2025_numbercompose, author="Wolfram Research", title="{NumberCompose}", year="2015", howpublished="\url{https://reference.wolfram.com/language/ref/NumberCompose.html}", note=[Accessed: 13-August-2025]}

BibLaTeX

@online{reference.wolfram_2025_numbercompose, organization={Wolfram Research}, title={NumberCompose}, year={2015}, url={https://reference.wolfram.com/language/ref/NumberCompose.html}, note=[Accessed: 13-August-2025]}