[Document the] secant function messing up sec unit

[costerwi]

I believe "sec" is a built-in alias for the time unit seconds. However, if I type "5 sec" into the https://mathnotepad.com (or the evaluate input on https://mathjs.org) the function sec seems to take precedence and throw a TypeError even though it is expecting a unit:

TypeError: Unexpected type of argument in function multiplyScalar (expected: number or Unit or string or boolean or BigNumber or Complex or Fraction, actual: function, index: 1)

Can we improve the parser to avoid this confusion? It seems the unit "sec" is currently unavailable.

[josdejong]

Thanks for bringing this up.

Example:

import { evaluate, format } from 'mathjs' 

console.log(format(evaluate('120 seconds to minutes'))) // '2 minutes'

console.log(format(evaluate('120 sec to minutes')))
// Uncaught TypeError: Unexpected type of argument in function multiplyScalar 
// (expected: number or Unit or string or boolean or BigNumber or Complex or Fraction, actual: function, index: 1)

[josdejong]

Anyone able to look into this bug?

[costerwi]

The "min" (minimum) function interfering with the "min" (minutes) unit is another example.

[gwhitney]

Since it seems as though the (side) discussion on this in #2771 was to just accept the fact that in the mathjs parser these units are overridden, changing this to be a documentation issue.