if (x >= '0' && x <= '9' ){
            if( x+1 == '.'){
                printf("TEST");
                char new_float[5] = " ";
                //float float_num = 0;
                new_float[0] = x;
                //i++;
                new_float[1] = x + 1;
                //i++;
                new_float[2] = x + 2;
                //i++;
                new_float[3] = x + 3;
                root = (struct node*)malloc(sizeof(struct node));
                /*root->float_num = (float)(new_float - '0');
                root->element = ' ';
                operand_push(root);
                root->element = ' ';
                printf("NEW:%s",new_float);
                root->float_num = atof(new_float);
                root->right = NULL;
                root->left = NULL;
                operand_push(root);