Non-native speakers often struggle when they have to speak about powers. For example, the correct expression used for is “**ten to the power of three**“, although it is common to instead use the shorter form “**ten to the three**“. Similarly, is “**x to the (power of) seven**“. The exponents 2 and 3 (can you think of other examples?) have special names: is “**x squared**“, is “**x cubed**“. A confusing yet common mistake is to say “**ten to three**” (which refers to the time of day 2:50) instead of “**ten to the three**“. If the exponent is negative, for example , the correct expression is “**10 to the (power of) minus three**“, but not “**10 to the (power of) negative three**“. Finally, the correct form for is either “**exponential function of x”** or, much shorter, “**e to the (power of) x**“.

# Mathematical English: Powers

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Mathematical English: How to pronounce Gaussian – painfulenglish