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Substantially vs Exponentially - What's the difference?

substantially | exponentially |

As adverbs the difference between substantially and exponentially

is that substantially is in a strong substantial manner; considerably while exponentially is in an exponential manner.

substantially

English

Adverb

(en adverb)
  • In a strong substantial manner; considerably.
  • * 2012 October 23, David Leonhardt, "[http://www.nytimes.com/2012/10/24/us/politics/race-for-president-leaves-income-slump-in-shadows.html?_r=1&hp]," New York Times (retrieved 24 October 2012):
    • For the first time since the Great Depression, median family income has fallen substantially over an entire decade. Income grew slowly through most of the last decade, except at the top of the distribution, before falling sharply when the financial crisis began.
  • To a great extent; in essence; essentially.
  • Without material qualifications.

    • exponentially

    English

    Adverb

    (en adverb)
  • (mathematics, sciences) In an exponential manner.
  • * 1992 , Clark Glymour, Thinking Things Through: An Introduction to Philosophical Issues and Achievements , MIT Press (1997), ISBN 978-0-262-57119-7, page 333:
    • But every known algorithm for this problem requires a number of steps that increases exponentially as n increases.
  • * 2000 , Shuji Nakamura et al., The Blue Laser Diode: The Complete Story , Second Revised and Enlarged Edition, Springer, ISBN 978-3-540-66505-2, page 69:
    • Therefore, if absorption causes an attenuation of the oscillation amplitude, the temperature must decrease exponentially with increasing thickness.
  • * 2008 , Henri Benisty et al., Photonic Crystals: Towards Nanoscale Photonic Devices , Second Edition, Springer, ISBN 978-3-540-78346-6, page 216:
    • It can be readily derived from Eqs. 6.26 and 6.32 that the field generated by these incident evanescent waves inside the slab do (SIC) not decay away exponentially' from the upper interface, but increases '''exponentially as ''y decreases.
  • (proscribed) rapidly, greatly
  • * 2007 , Michael Glenn Maness, Would You Lie to Save a Life: Love Will Find a Way Home , page 357:
    • The more serious a Christian is about God's kingdom, the more exponentially complicating that venture is
  • * 2008 , Beth Kery, Take a Stranger No More , page 27:
    • He'd felt like Kathryn's soul was in her eyes as she'd regarded him for those precious few seconds... and her spirit was even more exponentially beautiful than