Displaying Results when they are very, very small

[jcoolman]

Maybe someone has asked this before. What about when tha result of a calculation is very small? I mean, if you work in molecular chemistry, some quantities are very small, I mean the power of ten are negative and big for these quantities. Computing an energy, MathCad 14 wrote U=0.J , but if I multiply the left side by 100000, the answer is 100000.U=8.7 e-15 J, but if the factor is 10000 (or lower), MathCad says 10000.U= 0.J again.

How can I prevent to happend this?

Thanks, I know MathCad is a great software.

[MikeArmstrong]

You can increase the number of decimal places or change the formatting. Please post an example problem if this is not clear.

Mike

[MikeArmstrong]

Like below.

Mike

[wayne]

You can also use a more appropriate unit, or make your own unit

[MikeArmstrong]

As Wayne said.

Mike

[ValeryOchkov]

One number with units must have the value from 0.1 to 1000.

1250 kg is not correct but 1.125 tonne is correct

0.09 g is not correct but 90 mg is correct

Etc

[MikeArmstrong]

Are you saying the above is not correct Valery?

It seems to be yielding the correct answer.

Mike