7.1.0 version of MathGraph32 corrects the following problem (present since 7.0 version ) :

- If an user defined function name contained upper case characters it was not usable in another calculation.

7.1.0 version of MathGraph32 brings up the following improvements :

- Function sum(expression, formal variable, start index, stop index, step) may now be applied to a matricial calculation. For instance, if A is a square matrix, in a matricial calculation, you can use formula sum(A^k,k,1,10,1) which will return the sum of powers A^k of matrix A with k in the range from 1 to 10 by step of 1.
- Function prod(expression, formal variable, start index, stop index, step) is also available in a matricial calculation. It returns a product instead of a sum.
- Function if(test, value if test = 1, value else) is also available in a matricial calculation.For instance, if test is a calculation returning value 1 or 0and id A is a square matrix, if(test,A,A^2) will return the same matrix as A if test value is 1 and otherwise will return the square of matrixA.

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