# Question: Correct upto 7 decimal figurs (not significant digits)

January 11 2013 by
false

2

I have the following expression

lambda1-2.9881355172134833*lambda2+16.044692204509636*lambda1^2-114.31727386075951*lambda1*lambda2+202.36051939112247*lambda2^2

I want to get the expression in a form in which all the coeffs are fixed to 7 decimal places.

I have tried with

evalf[7](lambda1-2.9881355172134833*lambda2+16.044692204509636*lambda1^2-114.31727386075951*lambda1*lambda2+202.36051939112247*lambda2^2)

But it does not corrected the figures up to 7 decimal places rather upto 7 significant digits. Help me to solve the issue.